Texas Instruments CDCM6208V2 Evaluation Module CDCM6208V2EVM CDCM6208V2EVM データシート
製品コード
CDCM6208V2EVM
Configuring the Board
Figure 3. Jumper Configuration For USB Power Supply
7.3
Configuring the Reference Inputs
The CDCM62008 offers two inputs (PRI_REF and SEC_REF). SMA J18 and J19 are dedicated for
PRI_REF (IN1p and IN1n) and SMA J20 and J21 are dedicated for SEC_REF (1N2p and 1N2n). Both
inputs in the EVM are AC-coupled, by default, using coupling capacitors (C25 and C26 for PRI_REF and
C29 and C30 for SEC_REF). CDCM6208 does NOT have any internal termination or biasing; so, external
biasing is required after AC coupling. Headers JMP10 and JPM11 provide the options for PRI_REF input
biasing and SEC_REF input biasing, respectively. Depending on the input signaling level and power
supply selection, proper biasing must be selected, see
PRI_REF (IN1p and IN1n) and SMA J20 and J21 are dedicated for SEC_REF (1N2p and 1N2n). Both
inputs in the EVM are AC-coupled, by default, using coupling capacitors (C25 and C26 for PRI_REF and
C29 and C30 for SEC_REF). CDCM6208 does NOT have any internal termination or biasing; so, external
biasing is required after AC coupling. Headers JMP10 and JPM11 provide the options for PRI_REF input
biasing and SEC_REF input biasing, respectively. Depending on the input signaling level and power
supply selection, proper biasing must be selected, see
8
CDCM6208 Evaluation Board
SCAU049A – May 2012 – Revised January 2013
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