THS7313 Datasheet, PDF (38/48 Pages) Texas Instruments – 3-Channel Low Power SDTV Video Amplifier with I2C Control, 6-dB Gain, SAG Correction, 2:1 Input MUX, and Selectable Input Bias Modes

THS7313
SLOS483 – NOVEMBER 2005
www.ti.com
Evaluation Module
An evaluation module (EVM) is available for the TPS7313. Because the THS7313 is controlled by the I²C lines,
additional control is required—rather than simple switches. To ease control, an USB-to-I²C interface was
designed onto the EVM. A computer running either Windows 2000 or XP is then connected to the EVM through
the USB cable. A computer program interface allows graphical control of the THS7313 that allows both read and
write functions to be performed. The EVM comes with a CD-ROM loaded with all the required software to install
the command software on to the computer.
To program the THS7313, the user selects the channel, the filter, and the mode of operation, and selects the
Execute button. The Req Done light on the computer screen is lit to confirm that the command was executed by
the THS7313. The same procedure is done for each and every channel. To read the THS7313 registers, change
the switch to Read, select the channel, and then select the Execute button. The resulting register content
appears in hexadecimal code.
Note that the USB-to-I²C interface circuitry must be powered by a 3.3-V supply only. Additionally, the I²C circuitry
section must be powered on either at the same time as the THS7313 or before power is applied to the THS7313.
This is due to the reading of the EEPROM, the TAS1020 device must complete to program its core. The yellow
LED in the I²C section is lit if the TAS1020 was programmed properly. If this LED is not lit, then cyclng the power
should be done to reset the USB-to-I²C TAS1020 chip.
Table 4 is a bill of materials, the board layout is found in Figure 66 through Figure 69.
ITEM DESCRIPTION
1 BEAD, FERRITE, 2.5A, 80 OHM
2
CAP, 22uF, TAN, 6.3V, 10%, LO
ESR
3
CAP, 100uF, TAN, 10V, 10%, LO
ESR
4 OPEN
5
CAP, 33pF, CERAMIC, 50V,
NPO
6
CAP, 47pF, CERAMIC, 50V,
NPO
7
CAP, 100pF, CERAMIC, 50V,
NPO
8
CAP, 1000pF, CERAMIC, 100V,
NPO
9
CAP, 0.01uF, CERAMIC, 100V,
X7R
10
CAP, 0.1uF, CERAMIC, 50V,
X7R
11 CAP, 1uF, CERAMIC, 16V, X7R
12 CAP, ALUM, 470uF, 10V, 20%
13 CAP, ALUM, 33uF, 25V, 20%
14 OPEN
15 RESISTOR, 0 OHM
16
RESISTOR, 2.74K OHM, 1/8W,
1%
17 OPEN
18 RESISTOR, 0 OHM
SMD
SIZE
0805
A
C
0805
0805
0805
0805
0805
0805
0805
0805
F
C
0603
0603
0603
0805
0805
Table 4. Bill Of Materials
REFERENCE
DESIGNATOR
FB1, FB2, FB3
C30
C5
C2, C3, C8, C11,
C12, C14, C17, C21,
C23
PCB
QUANTITY
3
1
1
MANUFACTURER'S
PART NUMBER⁽¹⁾
(TDK) MPZ2012S331A
(AVX)
TPSA226K006R0900
(AVX)
TPSC107K010R0100
9
C31, C32
2
(AVX) 08055A330JAT2A
DISTRIBUTER'S
PART NUMBER
(DIGI-KEY) 445-1569-1-ND
(DIGI-KEY) 478-1754-1-ND
(DIGI-KEY) 478-1765-1-ND
(DIGI-KEY) 478-1310-1-ND
C27, C29
2
(AVX) 08055A470JAT2A (DIGI-KEY) 478-1312-1-ND
C34
1
(AVX) 08055A101JAT2A (DIGI-KEY) 478-1316-1-ND
C33
1
(AVX) 08051A102JAT2A (DIGI-KEY) 478-1290-1-ND
C19, C28
2
(AVX) 08051C103KAT2A (DIGI-KEY) 478-1358-1-ND
C4, C6, C9, C13,
C16, C22, C25, C26,
C43, C44, Z4
11
(AVX) 08055C104KAT2A (DIGI-KEY) 478-1395-1-ND
C18, C35, C36, C37,
C38, C39, C40, C41,
C42, Z5, Z6
11
(TDK) C2012X7R1C105K (DIGI-KEY) 445-1358-1-ND
C1, C10, C20
3
(CORNELL)
AFK477M10F24B
(NEWARK) 97C7597
C7, C15, C24
3
(CORNELL)
AFK336M25C12B
(NEWARK) 97C7564
R47, R48, R49, R51
4
R1, R2, R3, R4, R6,
R7, R19, R20, R23
9
(ROHM) MCR03EZPJ000 (DIGI-KEY) RHM0.0GCT-ND
R41, R61
2
(ROHM)
MCR03EZPFX2741
(DIGI-KEY) RHM2.7KHCT-ND
R15, R16, R28
3
R9, R13, R21, Z1, Z2,
Z3
6
(ROHM) MCR10EZHJ000 (DIGI-KEY) RHM0.0ACT-ND
(1) Manufacturer's part numbers are used for test purposes only.
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