TAS5122DCARG4
Texas Instruments
IC AMP CLASS D STER 37W 56HTSSOP
Na stanie10790 pcs
56-HTSSOP
Tape & Reel (TR)
TAS5122
37W x 2 @ 6Ohm
16V ~ 25.5V
56-TFSOP (0.240", 6.10mm Width) Exposed Pad
Depop, Digital Inputs, Mute, Short-Circuit and Thermal Protection, Shutdown
2-Channel (Stereo)
Class D
Surface Mount
0°C ~ 70°C (TA)
PurePath Digital™
RFQ
TPA2005D1GQYR
Texas Instruments
IC AMP CLASS D MONO 1.45W 15BGA
Na stanie12300 pcs
15-BGA MICROSTAR JUNIOR (2.5x2.5)
Tape & Reel (TR)
TPA200
1.45W x 1 @ 8Ohm
2.5V ~ 5.5V
15-VFBGA
Differential Inputs, Short-Circuit and Thermal Protection, Shutdown
1-Channel (Mono)
Class D
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
DRV603PW
Texas Instruments
IC AMP CLASS AB STEREO 14TSSOP
Na stanie24151 pcs
14-TSSOP
Tube
DRV603
-
3V ~ 5.5V
14-TSSOP (0.173", 4.40mm Width)
Depop, Differential Inputs, Short-Circuit Protection, Shutdown
2-Channel (Stereo)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
DirectPath™
RFQ
TPA0132PWP
Texas Instruments
IC AMP AB STEREO 2.8W 24HTSSOP
Na stanie13490 pcs
24-HTSSOP
Tube
TPA013
2.8W x 2 @ 3Ohm
4.5V ~ 5.5V
24-PowerTSSOP (0.173", 4.40mm Width)
Depop, Differential Inputs, Input Multiplexer, Shutdown, Volume Control
2-Channel (Stereo) with Stereo Headphones
Class AB
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
TPA3111D1PWPR
Texas Instruments
IC AMP CLASS D MONO 10W 28HTSSOP
Na stanie34780 pcs
28-HTSSOP
Tape & Reel (TR)
TPA3111
10W x 1 @ 8Ohm
8V ~ 26V
28-PowerTSSOP (0.173", 4.40mm Width)
Depop, Differential Inputs, Short-Circuit and Thermal Protection, Shutdown
1-Channel (Mono)
Class D
Surface Mount
-40°C ~ 85°C (TA)
SpeakerGuard™
RFQ
MAX9724BETC+T
Analog Devices Inc./Maxim Integrated
IC AMP CLASS AB STER 63MW 12TQFN
Na stanie41450 pcs
12-TQFN (3x3)
Tape & Reel (TR)
MAX9724
63mW x 2 @ 32Ohm
2.7V ~ 5.5V
12-WFQFN Exposed Pad
Depop, Short-Circuit and Thermal Protection, Shutdown
Headphones, 2-Channel (Stereo)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
DirectDrive®
RFQ
AA4005GTR-E1
Diodes Incorporated
IC AMP CLSS AB STER 2.7W 20TSSOP
Na stanie15280 pcs
20-TSSOP-EP
Tape & Reel (TR)
-
2.7W x 2 @ 3Ohm
4.5V ~ 5.5V
20-TSSOP (0.173", 4.40mm Width) Exposed Pad
Depop, Shutdown, Thermal Protection
2-Channel (Stereo)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
TPA3110D2PWP
Texas Instruments
IC AMP CLASS D STER 15W 28HTSSOP
Na stanie24711 pcs
28-HTSSOP
Tube
TPA3110
15W x 2 @ 8Ohm
8V ~ 26V
28-PowerTSSOP (0.173", 4.40mm Width)
Differential Inputs, Short-Circuit and Thermal Protection, Shutdown
2-Channel (Stereo)
Class D
Surface Mount
-40°C ~ 85°C (TA)
SpeakerGuard™
RFQ
TDA7498E
STMicroelectronics
IC AMP D MONO/STER 220W PWRSSO36
Na stanie12670 pcs
PowerSSO-36 EPU
Tube
TDA7498
220W x 1 @ 3Ohm; 160W x 2 @ 4Ohm
14V ~ 36V
36-PowerFSOP (0.295", 7.50mm Width)
Differential Inputs, Mute, Short-Circuit and Thermal Protection, Standby
1-Channel (Mono) or 2-Channel (Stereo)
Class D
Surface Mount
0°C ~ 70°C (TA)
-
RFQ
TPA3129D2DAPR
Texas Instruments
IC AMP CLASS D STER 30W 32HTSSOP
Na stanie42783 pcs
32-HTSSOP
Tape & Reel (TR)
TPA3129
15W x 2 @ 8Ohm
4.5V ~ 26V
32-PowerTSSOP (0.240", 6.10mm Width)
Short-Circuit and Thermal Protection
2-Channel (Stereo)
Class D
Surface Mount
-40°C ~ 85°C
-
RFQ
MP1740EC-LF-Z
Monolithic Power Systems Inc.
IC AMP CLASS D MONO 3.62W 9WLCSP
Na stanie8090 pcs
9-WLCSP (1.55x1.55)
Tube
-
3.62W x 1 @ 4Ohm
2.5V ~ 5.5V
9-WFBGA, WLCSP
Depop, Short-Circuit and Thermal Protection
1-Channel (Mono)
Class D
Surface Mount
-20°C ~ 85°C (TA)
-
RFQ
TAS5414ATDKDRQ1
Texas Instruments
IC AMP CLASS D QUAD 116W 36HSSOP
Na stanie3820 pcs
36-HSSOP
Tape & Reel (TR)
TAS5414
116W x 2 @ 2Ohm, 58W x 4 @ 4Ohm
8V ~ 22V
36-BSSOP (0.433", 11.00mm Width) Exposed Pad
Depop, I²C, Mute, Short-Circuit and Thermal Protection, Shutdown
4-Channel (Quad)
Class D
Surface Mount
-40°C ~ 105°C (TA)
Automotive, AEC-Q100
RFQ
STA515W13TR
STMicroelectronics
IC AMP D QUAD 10W POWERSSO36
Na stanie12949 pcs
PowerSSO-36 EPD
Tape & Reel (TR)
STA515
10W x 4 @ 4Ohm
10V ~ 36V
36-PowerBFSOP (0.295", 7.50mm Width)
Short-Circuit and Thermal Protection
4-Channel (Quad)
Class D
Surface Mount
0°C ~ 70°C (TA)
-
RFQ
TDA2007A
STMicroelectronics
IC AMP CLASS AB STEREO 6W 9SIP
Na stanie9490 pcs
9-SIP
Tube
TDA2007
6W x 2 @ 8Ohm
8V ~ 26V
9-SIP
Short-Circuit and Thermal Protection
2-Channel (Stereo)
Class AB
Through Hole
-40°C ~ 150°C (TJ)
-
RFQ
TPA2008D2PWP
Texas Instruments
IC AMP CLASS D STER 3W 24HTSSOP
Na stanie26831 pcs
24-HTSSOP
Tube
TPA2008
3W x 2 @ 3Ohm
4.5V ~ 5.5V
24-PowerTSSOP (0.173", 4.40mm Width)
Depop, Differential Inputs, Short-Circuit and Thermal Protection, Shutdown, Volume Control
2-Channel (Stereo)
Class D
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
TDA7350A
STMicroelectronics
IC AMP AB MONO/STER 11MULTIWATT
Na stanie12380 pcs
11-Multiwatt
Tube
TDA7350
22W x 1 @ 3.2Ohm; 11W x 2 @ 2Ohm
8V ~ 18V
Multiwatt-11 (Vertical, Bent and Staggered Leads)
Depop, Short-Circuit and Thermal Protection, Standby
1-Channel (Mono) or 2-Channel (Stereo)
Class AB
Through Hole
-40°C ~ 150°C (TJ)
-
RFQ
TPA3245DDV
Texas Instruments
IC AMP CLSS D STER 115W 44HTSSOP
Na stanie6635 pcs
44-HTSSOP
Tube
TPA3245
115W x 2 @ 2Ohm, 230W x 1 @ 4Ohm
12V ~ 30V
44-PowerTSSOP (0.244", 6.20mm Width)
Depop, Short-Circuit and Thermal Protection
2-Channel (Stereo)
Class D
Surface Mount
0°C ~ 70°C (TA)
PurePath™
RFQ
TPA2025D1YZGR
Texas Instruments
IC AMP CLSS D MONO 2.28W 12DSBGA
Na stanie75040 pcs
12-DSBGA
Tape & Reel (TR)
TPA2025
2.28W x 1 @ 4Ohm
2.5V ~ 5.2V
12-UFBGA, DSBGA
Differential Inputs, Short-Circuit and Thermal Protection
1-Channel (Mono)
Class D
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
TPA0202PWP
Texas Instruments
IC AMP AB STEREO 2.2W 24HTSSOP
Na stanie15861 pcs
24-HTSSOP
Tube
TPA0202
2.2W x 2 @ 3Ohm
3V ~ 5.5V
24-PowerTSSOP (0.173", 4.40mm Width)
Depop, Input Multiplexer, Mute, Shutdown, Thermal Protection
2-Channel (Stereo) with Stereo Headphones
Class AB
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
TAS5112DFDR
Texas Instruments
IC AMP CLASS D STER 62W 56HTSSOP
Na stanie9510 pcs
56-HTSSOP
Tape & Reel (TR)
TAS511
62W x 2 @ 6Ohm
16V ~ 25.5V
56-PowerTSSOP (0.240", 6.10mm Width)
Depop, Digital Inputs, Mute, Short-Circuit and Thermal Protection, Shutdown
2-Channel (Stereo)
Class D
Surface Mount
0°C ~ 70°C (TA)
PurePath Digital™
RFQ
TFA9879HN/N1,157
NXP USA Inc.
IC AMP CLSS D MONO 2.75W 24HVQFN
Na stanie39201 pcs
24-HVQFN (4x4)
Tray
TFA9879
2.75W x 1 @ 4Ohm
2.5V ~ 5.5V
24-VFQFN Exposed Pad
Depop, Digital Inputs, I²C, I²S, Mute, Short-Circuit and Thermal Protection, Tone and Volume Control
1-Channel (Mono)
Class D
Surface Mount
-20°C ~ 85°C (TA)
-
RFQ
LM4873MTEX-1
Texas Instruments
IC AMP CLASS AB STER 3W 28HTSSOP
Na stanie3720 pcs
28-HTSSOP
Tape & Reel (TR)
LM4873
3W x 2 @ 3Ohm; 440mW x 2 @ 8Ohm
2V ~ 5.5V
28-PowerTSSOP (0.173", 4.40mm Width)
Depop, Input Multiplexer, Shutdown, Thermal Protection
2-Channel (Stereo) with Stereo Headphones
Class AB
Surface Mount
-40°C ~ 85°C (TA)
Boomer®
RFQ
TPA0212PWPR
Texas Instruments
IC AMP AB STEREO 2.6W 24HTSSOP
Na stanie26110 pcs
24-HTSSOP
Tape & Reel (TR)
TPA0212
2.6W x 2 @ 3Ohm
4.5V ~ 5.5V
24-PowerTSSOP (0.173", 4.40mm Width)
Depop, Differential Inputs, Input Multiplexer, Mute, Shutdown, Thermal Protection, Volume Control
2-Channel (Stereo) with Stereo Headphones
Class AB
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
MAX9713ETJ+T
Analog Devices Inc./Maxim Integrated
IC AMP CLASS D MONO 8W 32TQFN
Na stanie22043 pcs
32-TQFN (5x5)
Tape & Reel (TR)
MAX9713
8W x 1 @ 16Ohm
10V ~ 25V
32-WFQFN Exposed Pad
Depop, Differential Inputs, Mute, Short-Circuit and Thermal Protection, Shutdown
1-Channel (Mono)
Class D
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
AN17880A-E1
Panasonic Electronic Components
IC AMP CLASS AB STEREO 9MW 16SO
Na stanie7550 pcs
16-SO
Tape & Reel (TR)
AN17880A
9mW x 2 @ 16Ohm
1.8V ~ 4.5V
16-LSSOP (0.173", 4.40mm Width)
Mute, Standby
Headphones, 2-Channel (Stereo)
Class AB
Surface Mount
-25°C ~ 75°C (TA)
-
RFQ
MAX97236EWA+T
Analog Devices Inc./Maxim Integrated
IC AMP CLASS H STEREO 35MW 25WLP
Na stanie15370 pcs
25-WLP (2.31x2.31)
Tape & Reel (TR)
MAX97236
35mW x 2 @ 16Ohm
1.62V ~ 1.98V
25-WFBGA, WLBGA
I²C, Microphone, Mute, Short-Circuit Protection, Volume Control
Headphones, 2-Channel (Stereo)
Class H
Surface Mount
-
DirectDrive®
RFQ
TAS5122DCA
Texas Instruments
IC AMP CLASS D STER 37W 56HTSSOP
Na stanie3607 pcs
56-HTSSOP
Tube
TAS5122
37W x 2 @ 6Ohm
16V ~ 25.5V
56-TFSOP (0.240", 6.10mm Width) Exposed Pad
Depop, Digital Inputs, Mute, Short-Circuit and Thermal Protection, Shutdown
2-Channel (Stereo)
Class D
Surface Mount
0°C ~ 70°C (TA)
PurePath Digital™
RFQ
TAS5755MDFDR
Texas Instruments
IC AMP CLSS D MONO/STER 56HTSSOP
Na stanie14859 pcs
56-HTSSOP
Tape & Reel (TR)
TAS5755
-
3V ~ 3.6V
56-PowerTSSOP (0.240", 6.10mm Width)
Short-Circuit and Thermal Protection
1-Channel (Mono) or 2-Channel (Stereo)
Class D
Surface Mount
0°C ~ 125°C (TJ)
-
RFQ
TAS5111ADAD
Texas Instruments
IC AMP CLASS D MONO 93W 32HTSSOP
Na stanie10630 pcs
32-HTSSOP
Tube
TAS511
93W x 1 @ 4Ohm
3V ~ 3.6V
32-PowerTSSOP (0.240", 6.10mm Width)
Digital Inputs, Mute, Short-Circuit and Thermal Protection, Shutdown
1-Channel (Mono)
Class D
Surface Mount
0°C ~ 70°C (TA)
PurePath Digital™
RFQ
DRV601RTJRG4
Texas Instruments
IC AMP CLASS AB STEREO 20QFN
Na stanie13830 pcs
20-QFN (4x4)
Tape & Reel (TR)
DRV601
-
1.8V ~ 4.5V
20-WFQFN Exposed Pad
Depop, Short-Circuit and Thermal Protection, Shutdown
2-Channel (Stereo)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
DirectPath™
RFQ
TAS5631BPHDR
Texas Instruments
IC AMP D MONO/STER 600W 64HTQFP
Na stanie5520 pcs
64-HTQFP (14x14)
Tape & Reel (TR)
TAS5631
600W x 1 @ 2Ohm; 300W x 2 @ 4Ohm
25V ~ 52.5V
64-TQFP Exposed Pad
Depop, Digital Inputs, Short-Circuit and Thermal Protection, Shutdown
1-Channel (Mono) or 2-Channel (Stereo)
Class D
Surface Mount
0°C ~ 70°C (TA)
PurePath™ HD
RFQ
TAS5760LDAPR
Texas Instruments
IC AMP CLSS D MONO/STER 32HTSSOP
Na stanie9639 pcs
32-HTSSOP
Tape & Reel (TR)
TAS5760
-
3V ~ 3.6V
32-PowerTSSOP (0.240", 6.10mm Width)
Depop
1-Channel (Mono) or 2-Channel (Stereo)
Class D
Surface Mount
-25°C ~ 85°C (TA)
-
RFQ
TPA2100P1YZHR
Texas Instruments
IC AMP CLASS D MONO 16DSBGA
Na stanie21976 pcs
16-DSBGA (2.24x2.16)
Tape & Reel (TR)
TPA2100P1
-
2.5V ~ 5.5V
16-UFBGA, DSBGA
Differential Inputs, Short-Circuit and Thermal Protection, Shutdown
1-Channel (Mono)
Class D
Surface Mount
-40°C ~ 85°C (TA)
NanoFree™
RFQ
MAX9705BETB+T
Analog Devices Inc./Maxim Integrated
IC AMP CLASS D MONO 2.3W 10TDFN
Na stanie64220 pcs
10-TDFN (3x3)
Tape & Reel (TR)
MAX9705
2.3W x 1 @ 4Ohm
2.5V ~ 5.5V
10-WFDFN Exposed Pad
Depop, Differential Inputs, Short-Circuit and Thermal Protection, Shutdown
1-Channel (Mono)
Class D
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
LM4905LDX
Texas Instruments
IC AMP CLASS AB MONO 1.07W 8WSON
Na stanie11050 pcs
8-WSON (3x3)
Tape & Reel (TR)
LM4905
1.07W x 1 @ 8Ohm
2.2V ~ 5.5V
8-WFDFN Exposed Pad
Depop, Shutdown, Thermal Protection
1-Channel (Mono)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
Boomer®
RFQ
MP7740DN-LF-Z
Monolithic Power Systems Inc.
IC AMP CLASS D MONO 15W 8SOIC
Na stanie45170 pcs
8-SOICE
Tape & Reel (TR)
MP7740
15W x 1 @ 4Ohm
-
8-SOIC (0.154", 3.90mm Width) Exposed Pad
Depop, Short-Circuit and Thermal Protection
1-Channel (Mono)
Class D
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
TPA3007D1PW
Texas Instruments
IC AMP CLASS D MONO 6.5W 24TSSOP
Na stanie6089 pcs
24-TSSOP
Tube
TPA3007
6.5W x 1 @ 8Ohm
8V ~ 18V
24-TSSOP (0.173", 4.40mm Width)
Depop, Differential Inputs, Short-Circuit and Thermal Protection, Shutdown
1-Channel (Mono)
Class D
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
SSM2211CPZ-R2
Analog Devices Inc.
IC AMP CLASS AB MONO 1.5W 8LFCSP
Na stanie8680 pcs
8-LFCSP (3x3)
Tape & Reel (TR)
SSM2211
1.5W x 1 @ 4Ohm
2.7V ~ 5.5V
8-WFDFN Exposed Pad, CSP
Differential Inputs, Shutdown
1-Channel (Mono)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
TDA7491P13TR
STMicroelectronics
IC AMP D STEREO 10W POWERSSO36
Na stanie13521 pcs
PowerSSO-36
Tape & Reel (TR)
TDA7491
10W x 2 @ 6Ohm
5V ~ 18V
36-PowerBFSOP (0.295", 7.50mm Width)
Depop, Differential Inputs, Mute, Short-Circuit and Thermal Protection, Standby
2-Channel (Stereo)
Class D
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
MAX9759ETE+T
Analog Devices Inc./Maxim Integrated
IC AMP CLASS D MONO 4.3W 16TQFN
Na stanie21474 pcs
16-TQFN (4x4)
Tape & Reel (TR)
MAX9759
4.3W x 1 @ 3Ohm
3V ~ 5.5V
16-WQFN Exposed Pad
Depop, Differential Inputs, Mute, Short-Circuit and Thermal Protection, Shutdown
1-Channel (Mono)
Class D
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
PAM8908JER
Diodes Incorporated
IC AMP CLASS AB STER 35MW 16TQFN
Na stanie112620 pcs
U-QFN3030-16
Tape & Reel (TR)
PAM8908
35mW x 2 @ 16Ohm
2.5V ~ 5.5V
16-UFQFN Exposed Pad
Short-Circuit and Thermal Protection
2-Channel (Stereo) with Stereo Headphones
Class AB
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
TDA75610SEP-HLX
STMicroelectronics
IC AMP AB QUAD 45W 27FLEXIWATT
Na stanie9135 pcs
-
Tube
TDA75610
45W x 4 @ 4Ohm
6V ~ 18V
-
Mute, Standby
4-Channel (Quad)
Class AB
-
-40°C ~ 105°C (TA)
-
RFQ
NJM2135M
Nisshinbo Micro Devices Inc.
IC AMP CLASS AB MONO 400MW 8DMP
Na stanie70800 pcs
8-DMP
Tube
NJM2135
400mW x 1 @ 100Ohm
2V ~ 16V
8-SOIC (0.209", 5.30mm Width)
Standby
1-Channel (Mono)
Class AB
Surface Mount
-20°C ~ 75°C (TA)
-
RFQ
TPA6132A2RTER
Texas Instruments
IC AMP CLASS AB STER 25MW 16WQFN
Na stanie48750 pcs
16-WQFN (3x3)
Tape & Reel (TR)
TPA6132
25mW x 2 @ 16Ohm
2.3V ~ 5.5V
16-WFQFN Exposed Pad
Depop, Differential Inputs, Short-Circuit and Thermal Protection, Shutdown
Headphones, 2-Channel (Stereo)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
DirectPath™
RFQ
TDA7492PETR
STMicroelectronics
IC AMP D STEREO 41W POWERSSO36
Na stanie17085 pcs
PowerSSO-36 EPD
Tape & Reel (TR)
TDA7492
41W x 2 @ 6Ohm
7V ~ 26V
36-PowerBFSOP (0.295", 7.50mm Width)
Short-Circuit and Thermal Protection
2-Channel (Stereo)
Class D
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
MP1720DQ-12-LF-P
Monolithic Power Systems Inc.
IC AMP CLASS D MONO 2.78W 10QFN
Na stanie8250 pcs
10-QFN (3x3)
Tape & Reel (TR)
-
2.78W x 1 @ 4Ohm
2.5V ~ 5.5V
10-VFDFN Exposed Pad
Depop, Short-Circuit and Thermal Protection
1-Channel (Mono)
Class D
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
SSM2019BRNZ
Analog Devices Inc.
IC AMP CLASS AB MONO 8SOIC
Na stanie9029 pcs
8-SOIC
Tube
SSM2019
-
10V ~ 36V, ±5V ~ 18V
8-SOIC (0.154", 3.90mm Width)
Differential Inputs
1-Channel (Mono)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
AUIRS2092STR
Infineon Technologies
IC AMP CLASS D MONO 16SOIC
Na stanie5550 pcs
16-SOIC
Tape & Reel (TR)
AUIRS2092
-
10V ~ 18V
16-SOIC (0.154", 3.90mm Width)
Depop
1-Channel (Mono)
Class D
Surface Mount
-40°C ~ 125°C (TA)
-
RFQ
BD28411MUV-E2
Rohm Semiconductor
IC AMP STEREO CLASS-D 32QFN
Na stanie15690 pcs
VQFN032V5050
Tape & Reel (TR)
-
9W x 2 @ 8Ohm
4.5V ~ 13V
32-VFQFN Exposed Pad
Depop, Short-Circuit Protection
2-Channel (Stereo)
Class D
Surface Mount
-25°C ~ 85°C (TA)
-
RFQ
MAX9705CEBC+T
Analog Devices Inc./Maxim Integrated
IC AMP CLASS D MONO 1.4W 12UCSP
Na stanie7500 pcs
12-UCSP
Tape & Reel (TR)
MAX9705
1.4W x 1 @ 8Ohm
2.5V ~ 5.5V
12-WFBGA, CSPBGA
Depop, Differential Inputs, Short-Circuit and Thermal Protection, Shutdown
1-Channel (Mono)
Class D
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ