WHAM2 RX Jumpers and Options
Pin Name
Jumpers/
Components Pin Function
WH4925/29
Default config.
WH4927/31
Default config.
J3 = 0R
J4 = DNP
Pin 16 is GPIO port pin PC0
(FW configurable as input or output.)
Edge pin-16
J3 = DNP
J4 = 0R
Pin 16 is MCLK (output)
(FW programmable frequency: typically 12.288, 24.576,
or 49.152 MHz.)
J5 = 0R
J6 = DNP
Pin 17 is GPIO port pin PC1
(FW configurable as input or output)
Edge pin-17
J5 = DNP
J6 = 0R
Pin 17 is AN2 (XInC2 muxed analog input #2.)
(Input voltage range of ADC is 0V to 1.8V.)
J7 = 0R
J8 = DNP
Pin 18 is FW selectable as either GPIO port pin PI0 or
baseband unit #1 clock pin BB1CLK.
(PI0 is FW configurable as input or output.)
Edge pin-18
J7 = DNP
J8 = 0R
Pin 18 is AN1 (XInC2 muxed analog input #1.)
(Input voltage range of ADC is 0V to 1.8V.)
J9 = 0R
J10 = DNP
Pin 19 is FW selectable as either GPIO port pin PI1 or
baseband unit #1 data input/output pin BB1O.
(PI1 is FW configurable as input or output.)
Edge pin-19
J9 = DNP
J10 = 0R
Pin 19 is Left-Right Clock pin LRCK (output)
J17, J18 = DNP
U5 = CS4341,
R19, R20 = 10K,
R23 = 47K,
R25, R27 = 100R,
R26 = 0R,
C7 = 1uF,
C9, C13 = 10uF,
C12, C14 = 8200pF,
C22, C30, C31 = 0.1uF,
C33 = 470pF.
Pin 22 is Right channel Analog Audio Output: AOUTR
Pin 23 is Left channel Analog Audio Output: AOUTL
Edge pins
22 & 23
J17, J18 = 0R
U5 = DNP,
R19, R20, R23 = DNP,
R25-R27 = DNP,
C7 = DNP,
C9, C13 = DNP,
C12, C14 = DNP,
C22, C30, C31 = DNP,
C33 = DNP
Pin 22 is serial digital data I/O port pin SDIO0
Pin 23 is Serial digital audio clock SCLK
Table 8 – WHAM2 RX Jumper Configurations
ES250PW
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