Abb Chip - Lenovo I360 Maintenance Manual

I360 Mobile Phone Maintenance Manual
b. Full-speed voice coding/decoding
b. Enhanced full-speed voice coding/decoding
d. 16-state Viterbi equalizer (soft decision)
e. Dual-tone multiple frequency and call progression voice producer
L. Wireless transmission power management
M. Delayed clock for low current standby state
N. Ultra-low power design
O. 14.4Kbps on-chip GSM data processing
P. JTAG testing interface
Q. 1.5V operation voltage
R. 179-pin BGA package
S. Voice baseband Codec and A/D interface

2.3.2 ABB chip

A. Power Voltage: 1.5V--3.3V
B. Input frequency of system clock: 13MHz
C. Ambient temperature: -40--85℃
D. Complete interfaces:
a. A/D interfaces for voice I/O
b. A/D interfaces for baseband I/O
c. A/D interfaces for auxiliary/control signals
E. Voice Codec
a. Complete linear Codec
b. Dual-channel 15-bit A/D converter with filters
c. Dedicated buzzer output
d. Programmable I/O gain
e. Serial audio interface
F. Baseband Codec
LENOVO
Lenovo Mobile Telecommunications Co., Ltd.（OPEN DOC）
v0.1
13 13
Page of