Texas Instruments TDP158RSBEVM, Руководство пользователя

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Hardware Description
5 SLLU257A – February 2017 – Revised February 2018
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TDP158 RSB Evaluation Module
2.5 Jumper Configuration
Jumpers are provided to operate the device and EVM in different configurations, see Table 3 .
Table 3. SW1 DIP Switch Setting
DIP SW No Signal Name Description Default Config
J3 HPD_SNK JP 2–3 for external HPD
JP 2–1 for board_5V JP 2–3
J5 PRE JP 1–2 for 3 db
JP 2–3 for 0 db
When I2C_EN is low JP 2–3
J6 SWAP JP 1–2 for SWAP
JP 2–3 for Normal
When I2C_EN is low JP 2–3
J7 I2C_EN JP 1–2 for I2C_EN = High; Puts Device into I2C Control Mode
JP 2–3 for I2C_EN = Low; Puts Device into Pin Strap Mode JP 2–3
Puts Device into Pin Strap Mode
J8 TERM JP 1–2 for 75–150 Ω
JP 2–3 for 150–300 Ω
NC; no termination
NC
Note: When TMDS_CLOCK_RATIO_STATUS
bit = 1, the TDP158 automatically sets source
termination at 75
Ω to 150 Ω .
J9 VSADJ JP 1–2 for 5.5 k Ω
JP 2–3 for adjustable resistance (6 k Ω )
NC – N/A
JP 2–3
The default value is 6 k
Ω on early EVMs (prior to
revision B)
J10 EQ1_SEL_A0 JP 1–2 for:
•
tab I2C Addr bit A0 = 1, when I2C_EN = H
• tab Fixed EQ at 14 dB @ 3G, when I2C_EN = L
JP 2–3 for:
•
tab I2C Addr bit A0 = 0, when I2C_EN = H
• tab Fixed EQ at 7.5 dB @ 3G, when I2C_EN = L
NC for Adaptive EQ
NC
J11 EQ2_SEL_A1 JP 1–2 for:
•
tab I2C Addr bit A0 = 1, when I2C_EN = H
• tab Fixed EQ at 14 dB @ 3G, when I2C_EN = L
JP 2–3 for:
•
tab I2C Addr bit A0 = 0, when I2C_EN = H
• tab Fixed EQ at 7.5 dB @ 3G, when I2C_EN = L
NC for Adaptive EQ
NC
J12 SLEW JP 1–2 for fast
JP 2–3 for slowest
NC for mid range NC
2.6 Component Population Configuration
To allow the TDP158 EVM to support both HDMI or DP input, there are many components that need to be
removed, placed, or modified depending on the board configuration.
Table 4 provides a summary of the
component configuration for the TDP158 RSB. In addition, the unused source receptacle can be
depopulated.
Table 4. Component Configuration
Function Reference Designator TDP158
Differential Pair - IN C16, C17, C18, C19, C20, C21, C22, C23 populated with 0.1 µF
Differential Pair - HDMI IN R9, R10, R11, R14, R15, R16, R17, R18 not populated (0 Ω )
SDA or SCL - HDMI R12, R13 not populated (2 k
Ω
)
Differential Pair - DP IN R26, R27, R31, R32, R33, R34, R35, R37 populated with 0
Ω
SDA, SCL, or HPD - DP R29, R30 populated with 2 k Ω
Pullup Differential Pair HDMI IN R1, R2, R3, R4, R5, R6, R7, R8 populated with 49.9 Ω