LC7234-8460 데이터 시트보기 (PDF) - SANYO -> Panasonic
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LC7234-8460 Datasheet PDF : 23 Pages
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Pin Function
Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14 to 17
18 to 22
23 to 26
27 to 49
50, 51
52
53
54
55
56
57
58
59
60
61
62
63
64
LC7234-8460
Name
XIN
TEST2
SD
STEREO
BAND1
BAND0
MO/ST
FM/AM
M/S (L)
SW
AMUTE
FM
TIMER OUT
T8 to T5
T4 to T0
K3 to K0
S23 to S1
COM2, COM1
HOLD
TEST
IFIN
TIMER CONT
VDD
FMOSC
AMOSC
VSS
EO
AIN
AOUT
TEST1
XOUT
Description
4.5MHz crystal oscillator input connection.
Test input. Normally connected to GND.
Active-LOW station detect input. During autotuning, this input is active when a station is detected.
Connect to VSS when not in use.
Active-LOW stereo detect input. When LOW during FM mode, the STEREO display LED is ON.
Connect to VDD when not in use.
Band select inputs. Active when SELBND is 0. See the band select tables.
Active-HIGH mono/stereo indicator output. Mono when LOW and stereo when HIGH. LOW level
after reset. Leave open when not in use.
Active-HIGH FM/AM band select output. AM when LOW and FM when HIGH. HIGH level after
reset. Leave open when not in use.
Active-LOW medium/short wave band select output. MW when HIGH and SW(LW) when LOW.
LOW level after reset. Leave open when not in use.
Active-HIGH short wave band select output. SW1 when LOW and SW2 when HIGH. LOW level
after reset. Leave open when not in use.
Active-HIGH audio mute control output. Cuts the audio output when changing receiver frequency.
HIGH level after reset. Leave open when not in use.
Active-HIGH AM/FM select output. FM when LOW and AM when HIGH. LOW level after reset.
Leave open when not in use.
Active-HIGH timer control output. HIGH during timer and sleep mode operation. LOW level after
reset. Leave open when not in use.
Active-HIGH diode matrix scan outputs.The matrix is scanned when a LOW-to-HIGH transition
occurs on HOLD. Device is initialized if data has changed. LOW level after reset. Leave open
when not in use.
Active-HIGH key matrix scan outputs.The key matrix is scanned only when the corresponding key
is pressed. Goes HIGH after each scan. HIGH level after reset. Leave open when not in use.
Active-HIGH key scan inputs. Connect to VSS when not is use.
Segment driver outputs. Leave open when not in use.
Common driver outputs. Leave open when not in use.
Active-LOW hold mode control input. When a HIGH-to-LOW transition occurs and the clock is
operating, hold mode is selected (IDD = 0.7mA typ.). When a HIGH-to-LOW transition occurs and
the clock is not operating, backup mode is selected (IDD = 5µA max.).
Active-HIGH test input. See the Test key description for further information.
AM/FM IF signal input. Connect to VSS when not in use.
Active-LOW timer control input. Timer operating when LOW and not operating when HIGH.
Connect to VDD when not in use.
5V supply
FM local oscillator input. Connect to VSS when not in use.
AM local oscillator input. Connect to VSS when not in use.
Ground
Phase comparator output.
Lowpass filter amplifier input connection. Connect to VSS when not in use.
Lowpass filter amplifier output connection. Connect to VSS when not in use.
Test input. Normally connected to GND.
4.5MHz crystal oscillator output connection.
Specifications
Absolute Maximum Ratings at Ta = 25˚C, VSS = 0V
Parameter
Symbol
Conditions
Supply voltage
Input voltage
Output voltage
Output current
Allowable power dissipation
VDD
VIN1
VIN2
VOUT1
VOUT2
IOUT1
IOUT2
IOUT3
IOUT4
Pd max
HOLD, TEST, SD, STEREO, TIMER CONT, BAND0,
BAND1
All other inputs
MO/ST, FM/AM, AOUT
All other outputs
MO/ST, FM/AM
M/S(L), SW, AMUTE, FM, TIMER OUT, T6 to T8
T0 to T5
AOUT
Ta=– 40 to +85°C
Operating temperature
Topr
Storage temperature
Tstg
Ratings
Unit
– 0.3 to +6.5 V
– 0.3 to +13
V
– 0.3 to VDD+0.3
– 0.3 to +15
V
– 0.3 to VDD+0.3
0 to 5
0 to 3
mA
0 to 1
0 to 2
400 mW
– 40 to +85 ˚C
– 45 to +125 ˚C
No.4350–2/23
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