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Maxim Integrated Products
20
MAX9264 Evaluation Kit
Evaluates: MAX9263/MAX9264
Table 1. MAX9264 EV Kit Jumper Descriptions (continued)
*
Default position.
JUMPER
SIGNAL
SHUNT POSITION
DESCRIPTION
JU205
I
2
S WS
1-2*
U1 I
2
S audio drives U20 MAX9850 audio DAC.
Open
Disconnects I
2
S signals.
JU206
MCLK
1-2
U20 MCLK = PLL_OUT_MCLK from 4x PLL U29.
1-3
U20 MCLK = PCLK_OUT.
1-4
U20 MCLK = PCLK_OUT divided by 2.
1-5*
U20 MCLK = DOUT28/MCLK from U1.
Open
Reserved.
JU251
U25 SYNC
1-2*
U25 operates in spread-spectrum mode with f
OSC
= 1200kHz
Q
60kHz.
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, enable speaker driver.
2-3
U25
SHDN
= low, disable 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.
JU290
U29 FS0/SCL
1-2*
U29 frequency select FS0 = 1.
2-3
U29 frequency select FS0 = 0.
JU291
U29 FS1/SDA
1-2*
U29 frequency select FS1 = 1.
2-3
U29 frequency select FS1 = 0.
JU292
U29 FS2
1-2*
U29 frequency select FS2 = 1.
2-3
U29 frequency select FS2 = 0.
JU293
U29
PD
1-2*
U29 operates.
2-3
U29 shuts down.
JU294
U29 TUNE
Not installed*
U29 TUNE connects to ground.
Open
U29 TUNE not connected or optional connection.
SW1
MS
1-2
(toggle switch up)
MS = High. Full-duplex bypass mode.
Device registers not
accessible.
2-3
(toggle switch down)
MS = Low. Half-duplex base mode.
Required when writing to device
registers or when using external I
2
C peripheral.
SW2
INT
1-2
(toggle switch up)
INT = High.
2-3
(toggle switch down)
INT = Low.