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| Multimedia ICs Analog signal I / O interface for portable audio applications BH7760KV The BH7760KV contains the complete audio I / O analog block on a single-chip IC. Therefore, all necessary functions for a DVC audio analog I / O interface are provided on one chip. *Applications applications Portable audio *Features the input amplifier, wind noise deletion fil1) Contains ter, ALC, 30kHz LPF, line amplifier, stereo headphone amplifier, and BTL monaural speaker amplifier required to configure a analog signal I / O interface (audio I / O) all on one chip. 2) With the internal 3-line serial control decoder circuit, serial control enables the setting of the various modes for the IC. *Absolute maximum ratings (Ta = 25C) Parameter Applied voltage Power dissipation Operating temperature Storage temperature Symbol VCC Pd Topr Tstg Limits + 7.0 900 - 10 ~ + 70 - 55 ~ + 125 Unit V mW C C Reduced by 9.0mW for each increase in Ta of 1C over 25C with the IC unmounted. When mounted on a 70mm x 70mm x 1.6mm glass epoxy board. *Recommended operating conditions (Ta = 25C) Parameter Power supply voltage (analog system) Power supply voltage (for SP) Power supply voltage (digital system) Not designed for radiation resistance. Symbol AVcc SPVcc DVcc Limits + 4.0 ~ + 6.0 + 4.0 ~ + 6.0 + 2.7 ~ + 3.3 Unit V V V 1 Multimedia ICs BH7760KV *Block diagram FADE DELAY 25 WINDC IN R FADE CTRL 26 WINDC IN L EXT NFB L EXT NFB R WINDC1 R WINDC2 R 27 INT NFB R WINDC1 L WINDC2 L 30 INT NFB L 35 36 34 33 32 31 29 28 A EXT INT INT MIC IN L 37 EXT INT MIC IN R 38 INT WIND CUT FADER + 21.3dB AMP 24 ALC FILTER ALC 23 A EXT INT WIND CUT ALC + 21.3dB AMP 21 REC NFB L MIC SEL 39 22 REC NFB R EXT MIC IN L 40 INT REC OUT L EXT MIC IN R 41 EXT AMP 20 REC OUT R LINE OUT L 42 + 8.7dB LPF 19 PB IN L LINE OUT R 43 AMP + 8.7dB LPF 18 PB IN R MUTE OUT 44 HPAMP + 8.7dB + HPAMP + 8.7dB SPAMP 17 DVCC HP OUT L 45 ATT SERIAL DATA I/F BIAS AVCC VREF 16 DGND HP OUT R 46 ATT 15 DATA IN SP OUT 1 47 14 CLK SP OUT 2 48 SPAMP POWER ON / OFF MUTE GEN 3 SP GND 4 BEEP IN 5 MIX OUT 6 MUTEGENC 7 MUTE CTRL 8 BIAS 13 CS 1 SP VCC 2 SP ON / OFF 9 VREFC 10 AGND1 11 AGND2 12 AVCC 2 Multimedia ICs BH7760KV *Pin descriptions Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 19,18 21,20 23,22 24 25 26 32,29 31,28 30,27 Pin name SP VCC SP ON / OFF SP GND BEEP IN MIX OUT MUTE GENC MUTE CTRL BIAS VREFC AGND1 AGND2 AVCC CS CLK DATAIN DGND DVCC PBIN L / R REC OUT L / R REC NFB L / R ALC FILTER FADE DELAY FADE CTRL WIND CIN L / R WIND C1 L / R WIND C2 L / R Speaker VCC SP ON / OFF control Speaker GND Speaker input HP amplifier L / R mixer output POWER ON MUTE delay Mute control input Bias VCC / 2 reference Analog GND1 Analog GND2 Analog VCC Serial control CS input Serial control CLK input Serial control DATE input Serial control GND Serial control VCC PB input REC output ALC amplifier feedback ALC constant setting FADE delay FADE control input WIND CUT FILTER input WIND CUT FILTER constant 1 WIND CUT FILTER constant 2 Function Pin voltage 5.0V 5.0V 0.0V 2.5V 2.5V 2.5V -- 2.5V 2.5V 0.0V 0.0V 5.0V -- -- -- 0.0V 3.0V 2.5V 2.5V 2.5V 0.0V -- 0.0V 2.5V 2.5V 2.5V 75k EF (P-P) B (NPN) ~ 3.9k EF (NPN) ~ 200 B (NPN) ~ 1k B (NPN) ~ 10k EF (P-P) EF (NPN) ~ 8.2k B (NPN) Pin type -- 100k PULL UP -- B (NPN) EF (NPN) EF (NPN) 10k EF (NPN) 100k -- -- -- G ~ 10k G ~ 10k G ~ 10k -- -- Note: EF: Emitter follower, P-P: Push-pull, B: Base, G: gate. 3 Multimedia ICs BH7760KV *Pin descriptions Pin No. 36, 34 35, 33 37, 38 39 40, 41 42, 43 44 45, 46 47 48 Pin name EXT NFB L / R INT NFB L / R Function MIC amplifier feedback (EXT) MIC amplifier feedback (INT) Pin voltage 2.5V 2.5V 2.5V 5.0V 2.5V 2.5V -- 2.5V 2.5V 2.5V Pin type B (NPN) B (NPN) 75k 200k PULL UP 75k EF (NPN) C (NPN) EF (NPN) EF (NPN) EF (NPN) INT MIC IN L / R INT MIC input MIC SEL MIC SEL control input EXT MIC IN L / R EXT MIC input LINE OUT L / R MUTE OUT HP OUT L / R SP OUT 1 SP OUT 2 LINE amplifier output MUTE output HP amplifier output BTL speaker output (forward side) BTL speaker output (reverse side) Note: EF: Emitter follower, P-P: Push-pull, B: Base, G: gate. *Electrical characteristics (unless otherwise noted, AVCC = SPVCC, VCC = 5.0V, DVCC = 3.0V, Ta = 25C) Parameter [Circuit current] Circuit current Circuit current power save ICC ICCS 6.0 0.8 11.0 1.6 20.0 3.2 mA mA No input No input and during power save Symbol Min. Typ. Max. Unit Conditions [MIC amplifier] INPUT: EXT MIC IN L / R, INT MIC IN L / R Output voltage level ALS level VOREC - 21.7 - 18.7 - 6.7 OUTPUT: REC OUT L / R - 15.7 - 2.7 dBV dBV VIN = - 70.0dBV, with MIC amplifier at 30dB VIN = - 50.0dBV, with MIC amplifier at 30dB VORECALC - 10.7 [Line amplifier (during EE)] INPUT: EXT MIC IN L / R, INT MIC IN L / R Output voltage level Distortion Output residual noise Crosstalk Maximum output level VOLINEEE THDLINEEE VONLINEEE CTLINEEE VOMLINEEE - 13.0 -- -- -- - 3.0 - 10.0 0.50 - 60.0 - 31.0 2.3 - 7.0 1.50 - 50.0 - 20.0 -- OUTPUT: LINE OUT L / R dBV % dBV dBV dBV VIN = - 70.0dBV, with MIC amplifier at 30dB VIN = - 70.0dBV, with MIC amplifier at 30dB1 With MIC amplifier at 30dB2 VIN = - 60.0dBV, with MIC amplifier at 30dB1 THD = 3%, 1, with ALC OFF [Line amplifier (during PB)] INPUT: PB IN L / R Output voltage level Distortion Channel balance Output residual noise VOLINEPB THDLINEPB CBLINEPB VONLINEPB - 12.0 -- - 0.5 -- OUTPUT: LINE OUT L / R - 10.0 0.017 0.0 - 90.0 - 8.0 0.20 + 0.5 - 73.0 dBV % dB dBV VIN = - 18.7dBV VIN = - 18.7dBV1 VOLINE L / R difference 2 1 B.W. = 400Hz to 30kHz 2 DIN AUDIO 4 Multimedia ICs BH7760KV *Electrical characteristics (unless otherwise noted, AVCC = SP, VCC = 5.0V, DVCC = 3.0V, Ta = 25C) Parameter Symbol Min. Typ. Max. Unit Conditions [HP amplifier] INPUT: PB IN L / R Output voltage level Distortion Maximum output level Output residual noise Crosstalk between channels Muting level [MIX OUT] INPUT: PB IN L / R Output voltage level OUTPUT: HP OUT L / R - 12.5 -- - 3.0 -- -- -- - 10.0 0.7 - 1.2 - 91.0 - 87.0 - 100.0 - 7.5 2.0 -- - 73.0 - 70.0 - 83.0 dBV % dBV dBV dBV dBV VIN = - 18.7dBV VIN = - 18.7dBV1 THD = 3%1 Rg = 1k2 VIN = - 8.7dBV2 VIN = - 8.7dBV, V7 = H2 VOHP THDHP VOMHP VONHP CTHP MTHP OUTPUT: MIX OUT VOMIX - 12.5 - 10.0 - 7.5 dBV VIN = - 18.7dBV [SP amplifier] INPUT: BEEP IN Output voltage level Distortion Maximum output level Output residual noise SP off level [Control mode hold voltage] CS Low mode hold voltage High mode hold voltage CLK Low mode hold voltage High mode hold voltage DATA IN Low mode hold voltage High mode hold voltage SP ON / OFF SP off hold voltage SP on hold voltage MUTE control MUTE hold voltage MUTE hold voltage FADE control FADE off hold voltage FADE on hold voltage MIC SEL EXT hold voltage INT hold voltage OUTPUT: SP OUT 1 / 2 (BML) VOSP - 4.5 -- + 3.0 -- -- - 1.0 0.8 + 4.8 - 95.0 - 65.0 + 2.5 2.0 -- - 80.0 - 55.0 dBV % dBV dBV dBV VIN = - 10.0dBV VIN = - 10.0dBV1 THD = 10%1 Rg = 1k2 VIN = - 6.0dBV2 THDSP VOMSP VONSP VOOFFSP VH14L VH14H 0.0 1.8 -- -- 0.5 DVCC V V -- -- VH15L VH15H 0.0 1.8 -- -- 0.5 DVCC V V -- -- VH16L VH16H 0.0 1.8 -- -- 0.5 DVCC V V -- -- VH3L VH3H 0.0 2.0 -- -- 0.5 AVCC V V -- -- VH7L VH7H 0.0 2.0 -- -- 0.5 AVCC V V -- -- VH26L VH26H 0.0 2.0 -- -- 0.5 AVCC V V -- -- VH39L VH39H 0.0 2.0 -- -- 0.5 AVCC V V -- -- 1 B.W. = 400Hz to 30kHz 2 DIN AUDIO 5 Multimedia ICs BH7760KV *Measurement circuit BIAS FADE CTRL 10 + 1k 1k 1k 1k 33k 0.047 0.047 33k 33k 0.047 0.047 33k 36 35 34 33 32 31 30 29 28 A FADER INT 37 EXT + + 27 26 25 EXT + INT WIND CUT 2.2M 24 4.7 22 + INT MIC IN L 1k INT MIC IN R 1k MIC SEL 1 + ALC 38 A EXT INT + 21.3dB AMP 1 23 39 + 22 22 + EXT MIC IN L 1k EXT MIC IN R 1k LINE OUT L 22k LINE OUT R 22k MUTE OUT 1 + 40 INT + WIND CUT ALC + 21.3dB AMP 21 1 REC OUT L 22k REC OUT R 22k PB IN L 1k PB IN R 1k DVCC 1 + 41 EXT 42 AMP + 8.7dB LPF 20 + 1 1 + 19 + 1 1 43 AMP + 8.7dB LPF 18 1 44 HPAMP + 8.7dB + 47 46 HPAMP + 8.7dB SPAMP + + 17 + 100 DGND HP OUT L 100 HP OUT R 100 SP OUT 1 47 45 ATT SERIAL DATA I/F BIAS AVCC VREF 16 ATT 15 DATA IN 47 8 14 CLK SP OUT 2 48 SPAMP POWER ON / OFF MUTE GEN 3 + 13 CS 1 2 4 0.47 5 0.47 + 6 7 8 + 9 10 11 + 12 100 10 10 AGND1 AGND2 + 100 AVCC 1k 15k SP ON / OFF 22k MUTE CTRL SP GND SP VCC 100 BIAS MIX OUT BEEP IN Fig.1 6 Multimedia ICs BH7760KV *External dimensions (Units: mm) 9.0 0.3 7.0 0.2 36 25 9.0 0.3 7.0 0.2 37 48 1 1.4 0.1 0.1 12 24 13 0.5 0.125 0.1 0.5 0.2 0.1 0.1 VQFP48C 7 |
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