Datasheet
MAX9268 Evaluation Kit
Evaluates: MAX9268
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Table 1. MAX9268 EV Kit Jumper Descriptions (continued)
*Default position.
Table 2. Address-Select Jumpers (JU7, JU8)
*Device address is determined when power is applied.
JUMPER SIGNAL SHUNT POSITION DESCRIPTION
JU203 I2S SD
1-2* U1 I
2
S audio drives U20 MAX9850 audio DAC
Open Disconnects the I
2
S signals
JU204 I2S SCK
1-2* U1 I
2
S audio drives U20 MAX9850 audio DAC
Open Disconnects the I
2
S signals
JU205 I2S WS
1-2* U1 I
2
S audio drives U20 MAX9850 audio DAC
Open Disconnects the I
2
S signals
JU206 MCLK
1-2* U20 MCLK = PLL_OUT_MCLK from 4x PLL U29
2-3 U20 MCLK = CNTL2/MCLK from U1
JU251 U25 SYNC
1-2*
U25 operates in spread-spectrum mode with f
OSC
= 1200kHz
Q60kHz
1-3 U25 operates in fixed-frequency mode with f
OSC
= 1400kHz
1-4
U25 operates in fixed-frequency mode with f
OSC
= external
TTL-compatible clock frequency
1-5 U25 operates in fixed-frequency mode with f
OSC
= 1100kHz
Open Reserved
JU252
U25 SHDN
1-2*
U25 SHDN = high, enables speaker driver
2-3
U25 SHDN = low, disables speaker driver
Open Reserved
JU253 U25 GAIN2
1-2* JU253 and JU254 set the gain of U25
2-3 JU253 and JU254 set the gain of U25
Open Reserved
JU254 U25 GAIN1
1-2* JU253 and JU254 set the gain of U25
2-3 JU253 and JU254 set the gain of U25
Open Reserved
JU255 U25 INL-
Not installed* U25 input INL is ground referenced
Open Reserved
JU256 U25 INR-
Not installed* U25 input INR is ground referenced
Open Reserved
JU7 SHUNT POSITION ADD1 JU8 SHUNT POSITION ADD0 MAX9268 ADDRESS
1-2 IOVDD
1-2 IOVDD 0xD4
1-3 Open 0xD8
1-4 GND 0xD0
1-3 Open
1-2 IOVDD 0x54
1-3 Open 0x58
1-4 GND 0x50
1-4* GND
1-2 IOVDD 0x94
1-3 Open 0x98
1-4* GND 0x90