4
AT73C202
2740B–PMGMT–05/03
Vibrator and Buzzer Driver Block
VIN-VIB (V
BAT5
) D7 Power Supply Input Vibrator LDO
EN-VIB E6 I Vibrator driver input (from Base Band chip)
V-VIB E7 O Vibrator LDO Output
BUZ-IN C5 I Buzzer driver input (from Base Band chip)
BUZ-OUT B3 O Buzzer output (connected to the buzzer)
BUZ-GND A4 Ground Ground of Buzzer Output
SIM Interface Block
D-VCC G1 Power Supply Digital supply for SIM Base Band chip Interface
SIM-EN G3 I Input to Power ON the SIM
SIM-1V8/2V8 F4 I Input to select the SIM Level (1.8V or 2.8V)
RESET-IN E4 I Reset Input from base band chip
CLK-IN F3 I Clock Input from base band chip
DATA-IO G2 IO Data Input/Output from base band chip
SIM-VCC E3 O SIM Power Supply (1.8V or 2.8V)
SIM-RST F1 O SIM Reset Output
SIM-CLK F2 O SIM Clock Output
SIM-IO E2 IO SIM Data Input/Output
Miscellaneous
CREF C7 IO Band gap decoupling
D-GND D1 Ground Ground for Digital (Charger, SIM & Vibrator)
BB1 D4 I Chip Configuration:
BB1 = 0: First Platform
BB1 = 1: Second Platform
Table 1. AT73C202 Pin Description (Continued)
Signal Ball Type Description
