參數(shù)資料
型號(hào): LC7267
廠商: Sanyo Electric Co.,Ltd.
英文描述: Digital Display of Clock/Receiving Frequency for Radio Set Applications(用于收音機(jī)時(shí)鐘/接收頻率數(shù)字顯示)
中文描述: 數(shù)字顯示時(shí)鐘/接收頻率為收音機(jī)應(yīng)用(用于收音機(jī)時(shí)鐘/接收頻率數(shù)字顯示)
文件頁(yè)數(shù): 4/10頁(yè)
文件大?。?/td> 144K
代理商: LC7267
.
V
DD
, V
SS
:
.
X
IN
, X
OUT
:
Power supply pin
Crystal oscillator, input amplifier pin
.
FIF1, FIF2, FIF3: FM IF offset value select pin
FIF1
FIF2
FIF3
IF (MHz)
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
+10.700
+10.725
+10.675
+10.750
–10.700
–10.725
–10.675
–10.650
.
AIF1, AIF2: AM IF offset value select pin
AIF1
AIF2
IF (kHz)
Display step
0
1
0
0
1
0
1
1
+450 (1)
10 kHz
+450 (2)
+455
+469
1 kHz step
1: High level
0: Low level
(Note) 450 kHz (1): 10 kHz-step display, others: 1 kHz-step display
.
FMI, AMI: Local OSC signal input pin
FMI: For FM
AMI:For MW, LW
.
FM/AM:
FM/MW, LW select pin
FM:
High level
MW, LW: Low level
.
CTR/CLK: Frequency display/time display select pin
CTR (Counter): High level
CLK (Clock):
Low level
.
DEMAND: Input pin for instructing execution of setting
CTR/CLK
0
0
DEMAND
1
0
MODE
Mode of setting by the time signal and hours-minutes setting mode
Time display mode
.
SET:
Input pin for setting hours-minutes
This pin is set at ‘‘M’’ level normally. The input signal of ‘‘H’’/‘‘L’’ level acts as follows:
When in the mode of setting by the time signal and hours-minutes setting mode (CTR/CLK = ‘‘L’’, DEMAND = ‘‘H’’)
High level: Execution of hours setting
Advance at a 2 Hz rate 1.2 seconds after the pin is set to ‘‘H’’ level.
Low level: Execution of setting by the time signal and minutes setting
Advance at a 2 Hz rate 1.2 seconds after the pin is set to ‘‘L’’ level.
Setting by the time signal is executed when the pin is set off within 1.0 second after set to ‘‘L’’ level.
No carry to high-order digit occurs.
.
INHI:
Input pin for turning OFF the segment pins, inhibiting the SET/DEMAND pin from functioning, and preventing the
AMI amp from operating
High level: Normal operation
Low level: Segment pin OFF, SET/DEMAND pin function inhibit
.
12H/24H: Input pin for selecting 12-hour system with PM sign/24-hour system
High level: 12-hour system with PM sign
Low level: 24-hour system
Crystal oscillator
Input amplifier
LC7267
No. 1511- 4/10
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