TB1311AFG Toshiba, TB1311AFG Datasheet - Page 9

• Manufacturer Part Number: TB1311AFG
• Manufacturer: Toshiba

Specifications of TB1311AFG

• Function: Programmable audio/video switching and frequency detection
• Features: CVBS, S-Video, YCbCr/RGB, SCART or D-pin, auto sync processor, pre-filter, dummy HD/VD output
• Operating Voltage: 9V, 5V
• Package: QFP80 (lead-free)

No.
Pin
33
15
31
30
10
17
19
21
23
18
20
34
12
13
22
14
4
6
8
5
7
1
3
2
9
SYNC1 IN
SYNC2 IN
HD IN
VD IN
CVBS1 OUT
Y1/G1 OUT
Cb1/B1 OUT
Cr1/R1 OUT
CVBS2 OUT
Y2/G2 OUT
Cb2/B2 OUT
Cr2/R2 OUT
AL1 OUT
AR1 OUT
AL2 OUT
AR2 OUT
AL3 OUT
AR3 OUT
MONITOR OUT
Yvi OUT
HD OUT
VD OUT
FB1 OUT
FB2 OUT
SYNC FILTER
Pin Name
Composite SYNC input pin to separate into
H- and V-SYNC.
Input the signal via a clamp capacitor.
Remark: SYNC1 IN is not available, when
HD or VD input pin.
Input a separated horizontal or vertical sync
signal (1.0 to 2.0 Vp-p) via a resistor and a
coupling capacitor.
The polarity of the input signal is detected
and its leading edge becomes a timing
trigger.
Video signal output pin.
Refer to Bus Control Functions for details of
the output from each pin.
Audio signal output pin.
Refer to Bus Control Functions for details of
the output from each pin.
Video signal output pin for a monitor output.
Refer to Bus Control Functions for details of
the output from the pin.
Video signal output pin for the sync
separation circuit.
Refer to Bus Control Functions for details of
the output from the pin.
HD or VD output pin.
The polarity of the output is selectable by
HV-POL register.
The tailing edge of the VD-OUT has a jitter.
Use the leading edge only.
FB output pin.
Note: If necessary, a resistor can be added
between the pin and GND to improve the
transient of the falling edge. The value of
the resistor must be 440
However, when the resistor is added, the
leak pulse from FB edges to video signals is
also increased.
A filter pin for sync detection.
Connect a capacitor between this pin and
GND.
A-SYNC = 1 (ON).
Function
or more.
Preliminary
9
12
13
22
9
10
17
19
21
23
18
20
4
6
8
1
3
5
7
34
2
Interface Circuit
11
16
11
16
24
32
11
16
Input Signal/Output Signal
AC: -3, 0 or +3 dB (typ.)
AC: +6 dB (typ.)
AC: 0 dB (typ.)
Sync tip level: 1.8 V (typ.)
1.45 V bias (typ.)
TB1311AFG
2005-12-20
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