PCM CODEC
www.DataSheet4U.com
01W127A
PCM CODEC for Digital cellular phones
BU8776KN
Description BU8776KN is PCM CODEC deveolpe...
Description
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
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