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参数资料
| 型号： | LC72342-XXXX |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| 封装： | QIP-64 |
| 文件页数： | 5/10页 |
| 文件大小： | 50K |
| 代理商： | LC72342-XXXX |
LC72342
No.6584-4/10
No.
Pin name
Designation
I / O
Function description
Logical
Initial
Remarks
"High"
"Low"
state
46
COM3
OUT
Common output
47
COM2
OUT
Common output
48
COM1
OUT
Common output
49
DBR4
OUT
LCD power supply
step-up pin
50
DBR3
OUT
LCD power supply
step-up pin
51
DBR2
OUT
LCD power supply
step-up pin
52
DBR1
OUT
LCD power supply
step-up pin
53
RES
IN
Reset input
54
HCTR
IN
IF input
55
VDD
+3V power supply
56
FMIN
IN
FM input
57
AMIN
IN
AM input
58
VSS
Ground pin
59
E0
OUT
Error output
60
AIN
IN
Low-pass filter input
61
AOUT
OUT
Low-pass filter output
62
AGND
Connect to GND
63
TEST1
IN
Connect to GND
64
XIN
IN
Quartz input
*1 : PD3 (AREA 1), PD2 (AREA 0) inputs
PD3
PD2
Destination area
Hi
Low
USA
Low
Hi
Europe
Low
East Europe
Hi
Japan
*2 : PD1 (TAPE) input
Tuner off changes the following functions
Condition
PD1
State (display)
Tuner off
Hi
Tape mode (”TAPE” displayed)
(TAPE input)
Low
Power off (clock display)
*3 : PF1 / ADI1 (PWR CHECK 3) input
A/D value and operation status are shown below. A/D is read only at power-on.
Input voltage
Detection method
P-FUL
P-MID
P-LOW
Operation state
A / D input value
--2.64V
PF1(A / D)
Lit
Normal
00h-0Eh
2.45V--2.10V
PF1(A / D)
Out
Lit
Normal
0Fh-10h
2.09V--1.81V
PF1(A / D)
Out
Flashing
Normal
11h-15h
1.80V--
PF1(A / D)
Out
Transition to
16h-1Fh
radio off
PF2
Out
Backup mode
*4: PF2 (PWR CHECK2), PDO / INT (PWR CHECK1) input
Backup mode detection is performed using external interrupt. External interrupt detection at falling edge is always
enabled. When an interrupt is detected, activate the backup mode after entering the HALT mode. When PF2 goes
from”Low” to ”High”, backup mode is canceled and normal mode is restored.
*5: PF0 / ADI0 (STEREO) input
PF0 input switches functions as shown below during Tuner ON.
Condition
PF0
State (display)
Tuner ON
Hi
”FM ST” flashing (when FM band tuning only)
(FM ST input)
Low
”FM ST” lit (when FM band tuning only)
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