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參數資料
| 型號： | LC72323-XXXX |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP80 |
| 封裝： | QFP-80 |
| 文件頁數： | 27/27頁 |
| 文件大?。?/td> | 457K |
| 代理商： | LC72323-XXXX |
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No. 4934-9/27
LC72323-XXXX
Continued from preceding page.
Pin
Name
I/O
Allocation
Active
Function
Handling when unused
64
COM2
O
COM2
H
Open
65
COM1
O
COM1
H
Connect directly to
66
/INT
I
/TELIN
L
VDD.
67
/HOLD
I
/HOLD
L
—
68
/RES
I
/RES
L
—
69
ADI
I
ADI
—
Connect directly to
ground.
70
HCTR
I
FMIF
—
Connect directly to
ground.
71
LCTR
I
AMIF
—
Connect directly to
ground.
72
/SNS
I
/SNS
L
Connect directly to
VDD.
73
VDD
I
VDD
—
Connect directly to
Connect to +5 V.
VDD.
74
FMIN
I
FM OSC
—
Connect directly to
ground.
75
AMIN
I
AM OSC
—
Connect directly to
ground.
76
VSS
I
VSS
—
77
EO1
O
EO1
—
Open
78
EO2
O
EO2
—
Open
79
TEST1
I
TEST1
—
Connect directly to
ground.
80
XOUT
O
XOUT
—
Connection for the 4.5 MHz crystal
—
LCD common output
When this pin is set low, “TEL” is displayed and the /AMUTE pin is set
low. When PRIORITY is 0, “TEL” is displayed for 5 seconds and then
the display returns to the clock display.
Used for detecting the power on/off state.
When /HOLD goes low
If the clock function is enabled:
The clock count function operates without stopping the oscillator.
If the clock function is disabled:
The oscillator is stopped and the chip goes to the power save mode.
Connect to VDD.
Connect to the S METER pin. (max = 3.2 V)
Inputs the FM IF signal.
Inputs the AM IF signal.
Used for power supply detection.
FM local oscillator input
AM local oscillator input
Connect to ground.
Phase comparator output
Connect to ground.
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