TA1370FG
TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic
TA1370FG
SYNC Processor, Frequency Counter IC for TV Component Signals
TA1370FG is a sync processor for TV component signals.
TA1370FG provides sync and frequency counter processing for
external input signals.
These functions are integrated in a 30 pin SSOP-type plastic
package.
TA1370FG provides I
2
C bus interface, so various functions and
controls are adjustable via the bus.
Features
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Horizontal synchronization circuit (28.125 kHz, 31.5 kHz,
33.75 kHz, 45 kHz)
Horizontal and vertical frequency counter
Horizontal PLL
Accepts 2-level and 3-level sync
Accepts both negative and positive HD and VD
Clamp pulse output
HD, VD output (polarity inverter)
Separated sync output
Mask for the copy guard signal
Weight: 0.63 g (typ.)
Vertical synchronization circuit (525P, 625P, 750P, 1125I, PAL 100 Hz, NTSC 120 Hz)
1
2005-09-05
TA1370FG
Block Diagram
SYNC1-IN
26
19
INV
SW
INV
SW
17
16
SYNC
SEPA
DAC1
SW
SYNC
SEPA
I CBUS
Decoder
2
DAC3
25
24
23
22
21
20
18
VD2-OUT
VD1-OUT
NC
DAC1
SYNC2-IN Address SW
SCL
SDA
NC
HD2-OUT Digital GND
HD1-OUT
NC
30
29
28
27
DAC3
SW
INV
SW
INV
SW
TEST DAC3
HD2-OUT
SW
DV2-OUT
SW
DV1-OUT
SW
DAC1
HD1-OUT
SW
V-Input
SW
V C/D
V-FREQ
SW
H/V-
FREQ
Counter
Clamp
Pulse
CP
SW
V-SYNC
V-FREQ
DET SW
DAC2
H/C-
SYNC
Polarity
DAC2
SW
V
Integral
HD
2
×
f
H
H-FREQ
DET SW
H-INPUT
SW
H-AFC
H C/D
H-Ramp
HVCO
H-FREQ
SW
1
Analog GND
NC
2
3
4
5
6
7
AFC Filter
8
NC
9
HVCO
10
NC
11
V
CC
12
DAC2
13
VD3-IN
14
HD3-IN
15
CP-OUT
HD2-IN
VD2-IN
HD1-IN
VD1-IN
2
2005-09-05
TA1370FG
Pin Functions
Interface Circuit
Input Signal/Output Signal
Pin
No.
Pin Name
Function
11
Th: 0.7 V
Input horizontal sync signal.
1
50 kΩ
1 kΩ
or
1
HD2-IN
It accepts input of both positive
and negative polarity.
Input signal from this pin is not
synchronized.
Th: 0.7 V
5
11
Th: 0.7 V
Input vertical sync signal.
2
45 kΩ
1 kΩ
or
2
VD2-IN
It accepts input of both positive
and negative polarity.
Input signal from this pin is not
synchronized.
Th: 0.7 V
5
3
2005-09-05
TA1370FG
Interface Circuit
Input Signal/Output Signal
Pin
No.
Pin Name
Function
11
Th: 0.7 V
Input horizontal sync signal.
3
50 kΩ
1 kΩ
or
3
HD1-IN
It accepts input of both positive
and negative polarity.
Input signal from this pin is not
synchronized.
Th: 0.7 V
5
11
Th: 0.7 V
Input vertical sync signal.
4
45 kΩ
1 kΩ
or
4
VD1-IN
It accepts input of both positive
and negative polarity.
Input signal from this pin is not
synchronized.
Th: 0.7 V
5
5
⎯
Analog GND
GND pin for analog circuit
blocks.
⎯
⎯
⎯
6
N.C.
Connect to GND.
4
2005-09-05
TA1370FG
Interface Circuit
Input Signal/Output Signal
Pin
No.
Pin Name
Function
11
Connect filter for horizontal
AFC.
7
300
Ω
30 kΩ
DC
7
AFC Filter
Voltage on this pin determines
horizontal output frequency.
5
8
N.C.
Connect to GND.
⎯
11
⎯
Connect ceramic oscillator for
horizontal oscillation.
4 kΩ
2 kΩ
1 kΩ
9
9
1 kΩ
10 kΩ
HVCO
Use Murata
CSBLA503KECZF30.
⎯
5
10
N.C.
Connect to GND.
⎯
⎯
⎯
⎯
11
V
CC
VCC pin.
Connect 9 V (typ.).
5
2005-09-05
