STMICROELECTRONICS STEVAL

STEVAL-CCA015V1
Triple video buffer with filter for HD
demonstration board based on the TSH346
Data brief
Features
■
4.5 V to 5.5 V single supply operation
■
R-G-B, Y-Pb-Pr, Y-C-CVBS, HD driving
■
3 channels with 6 dB gain buffer
■
3 video reconstruction filters for HD
■
3 internal input DC level shifter
■
No input capacitor is required
■
Very low harmonic distortion
■
Each output can drive AC/DC coupled
150 Ω loads
■
Tested on 5 V power supply
■
RoHS compliant
Description
This demonstration board is designed to evaluate
the TSH346, a single supply triple video buffer
featuring an internal gain of 6 dB and an internal
low pass filter of 36 MHz cut-off frequency for
each channel to fit with high definition
requirements for video line interfaces.
June 2009
Doc ID 15863 Rev 1
For further information contact your local STMicroelectronics sales office.
STEVAL-CCA015V1
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www.st.com
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Doc ID 15863 Rev 1
BNC_75R
J5
BNC_75R
J3
BNC_75R
J1
+VCC
R15
R1
75R
+VCC
R8
75R
+VCC
R1
75R
R16
nc
CR3 0R
R9
nc
CR2 0R
R2
nc
CR1 0R
R17
R1
nc
R1
R10
nc
R3
nc
3
2
1
IC1
C2
100nF
10uF
C1
GND
VCC
TSH346
TSH
346
+VCC
4
5
6
7
8
R19
nc
R12
nc
R5
nc
C3
+VCC
75R
R20
R2
75R
R13
R1
75R
R6
nc
C4
R21
nc
R14
nc
R7
nc
0R
LR1
nc
C10
0R
R18
nc
C8
0R
R11
nc
C6
0R
R4
+Vcc
1
J7
J8
J6
BNC_75R
J4
BNC_75R
J2
BNC_75R
GND
Figure 1.
nc
2/4
1
2
1
1
SILx2 J9
SILx
Circuit schematics
STEVAL-CCA015V1
Circuit schematics
Schematic diagram
AM03806v1
STEVAL-CCA015V1
2
Revision history
Revision history
Table 1.
Document revision history
Date
Revision
11-Jun-2009
1
Changes
Initial release.
Doc ID 15863 Rev 1
3/4
STEVAL-CCA015V1
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