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BU8776KN

LSI Computer Systems
Part Number BU8776KN
Manufacturer LSI Computer Systems
Description PCM CODEC
Published Dec 16, 2006
Detailed Description www.DataSheet4U.com 01W127A PCM CODEC for Digital cellular phones BU8776KN Description BU8776KN is PCM CODEC deveolpe...
Datasheet PDF File BU8776KN PDF File

BU8776KN
BU8776KN

Overview
www.
DataSheet4U.
com 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‚Ö 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 46 TSTOUT 47 NC •{ SW12 CPU I/F PLL •| •{ R6 MIC1IN 23 MIC1IP 22 •| •{ •{ C9 C...


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