BU8776KN

01W127A PCM CODEC for Digital cellular phones BU8776KN Description BU8776KN is PCM CODEC deveolped for digital cellular phones. High-precision linear CODEC and each audio part are integrated into a single chip by mixed signal technology. Compact and thin QFN48U package is adopted. Dimension (Units : mm) 1.4 ± 0.1 0.6 +0.1 -0.3 37 7.2 ± 0.1 7.0 ± 0.1 36 25 24 8± 0.1 7.2 ± 0.1 7.0 ± 0.1 48 1 12 0.2 ± 0.05 Features 1) +3V single power supply (VDD=2.7~3.3V) 2) 14bit high-precision linear µ/A-LAW CODEC 3) Transmission filter in CODEC (Based on ITU-T G.714) 4) Built-in PLL circuit for generating system clock 5) Built-in DSP I/F for PDC, N-CDMA 6) Serial I/F for register setting adapted for 3-wire serial type 7) Selectable PCM data transmission clock frequency µ/A-LAW 64kHz~2048kHz Linear 128kHz~2048kHz 8) Wide variety of Analog I/O functions *Built-in two microphone amplifiers (Differential input type, single input type) *Built-in speaker amplifier for receiver (32 BTL type) *Built-in speaker amplifier for earphone (32 single type) *Built-in driver amplifier for receiving REXT (600 ) *Built-in electronic volume for gain control (Receiving, Transmitting, TONE) *Built-in deta signal I/O circuit can connect outside *REXT, earphone, and receiver output reduce the pop noise by soft mute when power is ON/OFF. 9) QFN48U small, thin package 0.4 0.18 ± 0.05 0.05 M 12° 12° 0.05 QFN48U Applications PDC/CDMA/GSM type digital cellular phones November, 2001 0.01+0.03 -0.007 0.6 ± 0.1 0.8 +0.2 -0.1 0.1 5 0. 5.1 0 .4 +0 4 0. 35.1 0 .3 +0 13 ●Application Circuit CPUへ Frame Synchronizing signal 8KHz TEXTADD TEXTDO PLLLPF TEXTDI TAUDO FSYNC TXVDD MIC2O TEXT C11 R8 MIC2IN ＋ C1 ＋ R7 25 MIC1O 24 SDA SCL 36 35 STB 34 33 32 31 30 29 28 27 26 SW8 RESET 37 XPRSTB 38 DVDD 39 DVSS 40 PCMOUT To DSP 41 PCMIN 42 DCLK "L" fixed 43 CPUSEL 44 TSTMOD 45 TSTIN ＋− SW12 CPU I/F PLL − ＋ R6 MIC1IN 23 MIC1IP 22 − ＋ ＋ C9 C8 ＋ 3-TONE DTMF GEN TONE D/A Amp1 SW0 ＋ − MIC Amp2 R5 1 2 3 EV3 MIC Amp TXVSS 21 TXREF 20 REFC 19 DSP I/F BPF A/D AAF EV7 EV0 ＋ 1µ ＋ Typical external circuit constant R1:100k R2:100k R3:100k R4:100k R5:5.6k R6:100k R7:5.6k R8:100k C1:0.1µ C2:470p C3:0.1µ C4:470p C5:0.1µ C6:0.1µ C7:0.1µ C8:2.2µ C9:470p C10:2.2µ C11:470p ＋ LPF D/A EV1 VREF/ COMMON ＋ EV4 SOFTMUTE ERPO SPPO 15 SW14 7 6 5 SW4 2.2µ CODECREF ＋ 18 RXREF 17 SMUTE 16 RXVDD 15 EARO 14 RXVSS 13 1µ ＋ ＋ "L" fixed ERMT − ＋ 1µ ＋ "L" fixed Amp7 Amp3 EV6 EV5 RAmp 47 NC 48 ＋ SPOUT REXTDI EV2 SW9A SW9B RIN AUDO AUDVR REXTDO ERPN SPPN ERPO SPPO 1 2 3 4 5 6 7 8 9 10 11 SPCON SPCOP EXTO ON by REFPON ON by VCPON ＋ ＋ ON by TGPON ON by VOPON or TGPON ON by RXPON REXT ON by SPON ON by EARON ●Comparision table Part No. Function Supply voltage range Operating mode consumption current (TYP.) Stand-by mode consumption current (TYP.) BU8776KN PCM CODEC 2.7~3.3V 8.0mA 0.1µA · Digital BU8730KV PCM CODEC 2.7~3.3V 8.2mA 0.1µA · Digital Filter structure Dynamic receiver driving Speaker output form Speaker output load Amplifier for earphone Tone generation Tone pattern Gain control Mute function Power down function DAI(Digital Audio Interface) Side tone Auxiliary analog input Auxiliary analog output Ringer direct driving PCM format Package µ/A-LAW･ Linear QFN48U Linear VQFP48 Inside(Gain control) Single end x2 Single end x2 Outside(No gain control) Inside(Gain control） Single end Single end Single end x2 Single end x2 Gain control µ/A-LAW･ Linear VQFP48 Inside(Gain control） Single end x2 Single end x2 Gain control µ/A-LAW·Linear VQFP48 Inside(Gain control） Single end Single end Gain control µ/A-LAW·Linear VQFP48 Soft mute function Soft mute function Soft mute function Soft mute function Soft mute function DTMF 16Hz warble DTMF · Triple tone Each for GSM DTMF 16Hz warble DTMF 16Hz warble DTMF 16Hz continuation BTL 32 BTL 20k BTL 32 BTL 32 BTL 32 Power down in each block Power down in each block Power down in each block Power down in each block Power down in each block ＋− ＋ ＋ 46 TSTOUT EXTSEL JAmp SPMT − ＋ 0.22µ EAmp1 − ＋ ＋ Speaker for earphone Dynamic type 32 Amp5 −＋ Amp4 ＋− C7 EAmp2 12 R2 R1 C1 C2 R3 C3 R4 C4 C5 C6 Speaker for receiver Dynamic type 32 BU8732AKV PCM CODEC 2.7~3.3V 8.0mA 0.1µA · Digital BU8731KV PCM CODEC 2.7~3.3V 8mA 0.1µA · Digital BU8733KV PCM CODEC 2.7~3.3V 5.4mA 0.1µA · Digital