LC7233N-8818 Ver la hoja de datos (PDF) - SANYO -> Panasonic
Número de pieza
componentes Descripción
Lista de partido
LC7233N-8818 Datasheet PDF : 36 Pages
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LC7233N-8818
Continued from preceding page.
Pin
Name
I/O Allocation
52
HOLD
I
HOLD
53
ADI
I
VSS
54
HCTR
I
HCTR
55
SNS
I
STEREO
56
VDD
—
—
57
FMIN
I
—
58
AMIN
I
—
59
VSS
—
—
60
EO
O
—
61
AIN
I
—
62
AOUT
O
—
63
TEST1
I
—
64
XOUT
O
—
Active
L
—
—
L
—
—
—
—
—
—
—
—
—
Function
Detects the external power switch on/off state.
When HOLD goes from high to low:
• When the clock is enabled: The oscillator is not stopped and the
clock continues to count. (Hold mode; IDD = 1.5 mA typ)
• When the clock is disabled (when the diode matrix LED FLASH
setting is 1): The oscillator is stopped and the LC7233N-8818
enters low power mode. (Backup mode; IDD = 5 µA max)
Connected to VSS.
Inputs the FMIF and AMIF signals. Input an AC coupled signal of 100
mV rms or over. See the description of the diode matrix IFCOUNT0
and IFCOUNT1 settings.
Tolerance: FM ±10 kHz, MW ±3 Hz, LW ± 0.6 kHz
When HOLD is high, the display is turned on 500 ms after a low
level input in radio mode (FM or VF) only. Display starts 500 ms after
HOLD goes from low to high. However, this function is also enabled
in MW mode in products for the US and Japanese markets when the
diode matrix AM ST SEL setting is 1.
+5 V input
FM local oscillator input
Input an AC coupled signal of 100 mVrms or over.
AM local oscillator input
Input an AC coupled signal of 100 mVrms or over.
Connected to ground.
Phase comparator output: connected to the LPF input.
LPF amplifier input
LPF amplifier output
Connected to ground.
4.5 MHz crystal oscillator connection
Handling when unused
Must be used.
Connect directly to VSS.
Connect directly to VSS.
Connect directly to VDD.
—
Connect directly to VSS.
Connect directly to VSS.
—
Must be used.
Connect directly to VSS.
Connect directly to VSS.
—
—
Diode Matrix (DIMRX) Select
0: without diode, 1: with diode
Diode matrix
name
CLOCK
CD SELECT
B0
B1
B2
IFSHIFT
LW1
LW2
FMB0
FMB1
FM ONLY
On/
off
Function
Clock function enabled.
0
12 Hr: USA, Japan, Saudi Arabia, South Africa, Southeast Asia
24 Hr: Europe, East Europe
1
Clock function disabled.
0
CD function disabled. CDIN disabled. The CDOUT pin outputs a low level. Connect CDIN to VDD.
CD function enabled. When CDIN is low CDOUT will be high, and when CDIN is high CDOUT will be low. The CD key is also
1
enabled. (See the item on the CDIN pin.)
— See the reception frequency table.
FMB1
0
0
1
1
0
1
FMB0
Number of preset FM stations
0
FM1, FM2, FM3
(18 stations)
1
FM1, FM2
(12 stations)
0
FM1
(6 stations)
1
Illegal value
The FM, MW, and LW bands are enabled.
Only the FM band is enabled. The band key is disabled. The number of FM bands depends on the diode matrix FMB0 and FMB1
settings.
Continued on next page.
No. 4743-9/36
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