ATJ2085 ETC, ATJ2085 Datasheet - Page 8

• Manufacturer Part Number: ATJ2085
• Description: Atj2085 is a Single-chip for Flash-based Digital Music Player
• Manufacturer: ETC

ATJ2085
Copyright © 2004 Actions Semiconductor Co., Ltd. All rights reserved.
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VER 1.5
GPIO_C2
GPIO_B0
GPIO_B1
BATSEL
HOSCO
AOUTR
PAGND
LRADC
AOUTL
LXVDD
FMINR
VDDIO
HOSCI
FMINL
DCDIS
AGND
VREFI
VRDA
MICIN
KEYI0
KEYI1
AVCC
AVDD
VMIC
GND
BAT
VP
PWR
PWR
PWR
PWR
PWR
PWR
PWR
AO
AO
AO
AO
AO
AO
AI
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BI
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WWW.MP3JS.COM.CN
1.9mA
1.9mA
1.9mA
Driver
Driver
Driver
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Page 7
DATA SHEET
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capacitors are 47uF and 0.1uF)
Int. DAC right channel analog output
Int. DAC left channel analog output
Power amplifier ground
Bypass capacitor (typ 0.47uF)
Microphone pre-amplifier input (0.8V-2.2V)
Power supply for microphone, 2.2V output
Left channel of FM line input
Right channel of FM line input
Analog ground
Analog power
Voltage reference input (1.5V)
Analog power
Power output (connect to VDD through a 4.7
Ohm (typ) resistance)
Power pin (When 2 Batteries mode, connect to
BAT. Others mode Connect to VCC)
Low resolution ADC input, 0.8--2.2V, 8Bit ADC
High frequency crystal OSC input
High frequency crystal OSC output
Battery select. L：One Battery
H：Two Batteries
Int. DC-DC control pin. H: Disable DC-DC. L:
Enable DC-DC.
Bit0 of General purpose I/O port B
Bit0 of key scan circuit input
Bit2 of General purpose I/O port C
Bit1 of General purpose I/O port B
Bit1 of key scan circuit input
Ground
Battery monitor pin
VDD DC-DC pin
8/18/2004
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