lc7265 Sanyo Semiconductor Corporation, lc7265 Datasheet - Page 5

• Manufacturer Part Number: lc7265
• Description: Received Frequency Display For Radio Receivers
• Manufacturer: Sanyo Semiconductor Corporation

Hold time – time constant connected to HLD pin
Time constant connected to HLD pin, (t = CR) – ms
For FMI input : 18 MHz, 0.7Vp-p,
For AMI input : 3 MHz, 0.5Vp-p,
To obtain 1-s hold time make time
constant connected to HLD pin 720 ms.
Note: time constant connected to HLD
pin must be 100 ms or more.
Upper standard value. V
Lower standard value
Common conditions
Other pins open
FMI input frequency, f
FMI input frequency, f
Supply voltage, V
A/F = V DD
A/F = V SS
C = 2.2 µF
R = 470 k
Vp-p – f
I
V
DD
DD
For FMI input
– V
DD
– f
IN
DD
= 15 V or more
IN
1
1
DD
IN
IN
1 – MHz
– V
1 – Hz
For AMI input
LC7265
Time constant connected to BLK pin − V
For FMI input : 18 MHz, 0.7Vp-p, A/F = V DD
For AMI input : 3 MHz, 0.5Vp-p,A/F = V SS
Common conditions
Other pins open
Upper standard value
AMI input frequency, f
Ambient temperature, Ta – ° C
AMI input frequency, f
Lower standard value
V
DD
rise time – ms
V
Vp-p – f
DD
I
DD
– f
– Ta
If V DD rise time is 200 ms,
make time constant externally
connected to BLK pin 200 ms
or more.
C = 1 µF
R = 200 k
IN
IN
2
2
IN
IN
2 – MHz
For FMI input
For AMI input
2 – Hz
or more
DD
No.1197-5/6
rise time