BA7062F Datasheet, PDF (5/7 Pages) Rohm – SYNC separator IC with AFC

Multimedia ICs
•^{Application example}
C4
100p
R1
VCC = 5V
130k
1
10k
HD
2
R2
470k
H.OSC
SYNC
3
VD
4
V.SEPA
PHASE
COMP
SYNC
SEPA
BA7062F
∗
C2 R3
10k
+ ^C3
8
1µ
VCC = 5V
+ C5
47µ
C6
0.022µ
7
C1
6
+ 1µ
R5 _470k
R4
Vsig
330
5
C7
∗ By configuring the circuit enclosed in the dotted line to that in the
diagram on the right, you can decrease the lock-in time and increase
the capture range.
Fig. 9
R2 470k
8
C2
2200p
VCC
+
R3
10k
C3-1
0.47µ
+
C3-2
0.47µ
• When SYNC SEPA output only is used. HD and VD unused.
R1
VCC = 5V
120k
1
10k
HD
2
SYNC
3
VD
4
H.OSC
V.SEPA
PHASE
COMP
SYNC
SEPA
Fig. 10
VCC = 5V
+ C5
C6
47µ 0.022µ
8
7
C1
6
+ 1µ
R5 _470k
R4
Vsig
330
5
C7
(1) Connect pin 1 to GND via a 120kΩ (approx.) resistor. Leave pins 2, 4 and 8 open.
(2) SYNC output polarity (pin 3) is positive.
(3) The delay time for rising edge of the SYNC output (pin 3) with respect to the falling edge of Sync for the Vsig
input signal (pin 6) is 850ns (reference value).
(4) The delay time for falling edge of the SYNC output (pin 3) with respect to the rising edge of Sync for the Vsig
input signal (pin 6) is 450ns (reference value).
•^{Attached components}
Resistor R1 should have a tolerance of ± 2%, and a temperature coefficient of 100ppm or lower.
5