Application Note 9783
TABLE 2. JUMPER SETTINGS
JUMPER
JP1
JP2
JP3
JP4
JP5
JP6
JP7
JP8
JP9
JP10
JP11
JP12
JP13
JP14
JP15
JP16
JP17
JP18
JP19
JP20
JP21
JP22
JP23
JP24
JP25
JP26
NAME
ART IN
ARB IN
BRT IN
BRB IN
CRT IN
CRB IN
ARTS
ARBS
AIO
BRTS
BRBS
BIO
CRTS
CRBS
CIO
LATCH_EN3
L1_ENABLE
L2_DISABLE
LATCH_EN1
LATCH_EN2
Cin
Ain
Bin
XAOE
XBOE
XCOE
PURPOSE
Connects top external board references VRT to the reference top of Channel A (VART). For proper operation
the top internal reference should not be selected via JP7.
Connects bottom external board references VRB to the reference bottom of Channel A (VARB). For proper
operation the bottom internal reference should not be selected via JP8.
Connects top external board references VRT to the reference top of Channel B (VBRT). For proper operation
the top internal reference should not be selected via JP10.
Connects bottom external board references VRB to the reference bottom of Channel B (VBRB). For proper
operation the bottom internal reference should not be selected via JP11.
Connects top external board references VRT to the reference top of Channel C (VCRT). For proper operation
the top internal reference should not be selected via JP13.
Connects bottom external board references VRB to the reference bottom of Channel C (VCRB). For proper
operation the bottom internal reference should not be selected via JP14.
Enables top internal reference of channel A. JP1 should be removed.
Enables bottom internal reference of channel A. JP2 should be removed.
Connects digital clamp output to channel input. Remove if internal clamp function is not used.
Enables top internal reference of channel B. JP3 should be removed.
Enables bottom internal reference of channel B. JP4 should be removed.
Connects digital clamp output to channel input. Remove if internal clamp function is not used.
Enables top internal reference of channel C. JP5 should be removed.
Enables bottom internal reference of channel C. JP6 should be removed.
Connects digital clamp output to channel input. Remove if internal clamp function is not used.
Enables channel A latch (U5).
Enables clock buffers. (U2).
Disables clamp buffer. (U2).
Enables channel B latch (U7).
Enables channel C latch (U6).
Connects bias-T to C Channel input.
Connects bias-T to A Channel input.
Connects bias-T to B Channel input.
Enable A Channel digital output.
Enable B Channel digital output.
Enable C Channel digital output.
3
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