LC7265 Datasheet, PDF (1/6 Pages) Sanyo Semicon Device – Received Frequency Display for Radio Receivers

Ordering number: EN 1197F
CMOS IC
LC7265
Received Frequency Display for Radio Receivers
Features
. _{Displays received frequency of each band of FM, MW, LW}
. (LED static display).
Counts local oscillation frequency and displays received
. frequency.
Number of display digits : FM-5 digits, MW-4 digits, LW-3
. digits.
Covers intermediate frequencies shown below.
FM :
+10.700, +10.725, +10.750, +10.675 MHz
–10.700, –10.725, –10.675, –10.650 MHz
MW, LW : +450 kHz : 10 kHz step display
+450 kHz : 1 kHz step display
+455 kHz : 1 kHz step display
+469 kHz : 1 kHz step display
. _{Contains blanking circuit to turn off display.}
. _{Contains hold circuit to hold display contents.}
. _{Uses crystal resonator having 7.2 MHz reference frequency.}
. _{Uses LB3500 (÷8 prescaler) jointly at the time of FM}
. reception.
Supply voltage V_DD : 4.5 V to 10 V
Package Dimensions
unit : mm
3025B-DIP42S
[LC7265]
SANYO : DIP42S
Specifications
Absolute Maximum Ratings at Ta = 25 °C, V_SS = 0 V
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
Input voltage
Output voltage
Allowable power dissipation
V_DD max
V_IN
V_O1
V_O2
Pd max
All input pins
X_OUT, HLD, 50 Hz, output: off
Output pins other than V_O1
Ta % 65 °C
–0.3 to +11
V
–0.3 to V_DD+0.3
V
–0.3 to V_DD+0.3
V
0 to 15
V
550
mW
Allowable power dissipation of
segment outputs
Operating temperature
Pd (seg)1
Pd (seg) 2
Pd (seg) 3
Pd (seg) 4
Topr
MHz, b&c, b&e, V_DD = 4.5 to 6.5 V,
I_OL = 33 mA
Other outputs, V_DD = 4.5 to 6.5 V,
I_OL = 16.5 mA
MHz, b&c, b&e, V_DD = 6.0 to 10 V,
I_OL = 36 mA
Other outputs, V_DD = 6.0 to 10 V,
I_OL = 18 mA
30
mW
15
mW
25
mW
12
mW
–30 to +65
°C
Storage temperature
Tstg
–40 to +125
°C
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
63098HA(II)/6088YT/9105KI/3173KI/D162KI/7162KI/6242KI,TS No.1197-1/6