MAX9760EVSYS Maxim Integrated, MAX9760EVSYS Datasheet - Page 5

• Manufacturer Part Number: MAX9760EVSYS
• Description: Amplifier IC Development Tools
• Manufacturer: Maxim Integrated
• Series: MAX9760, MAX9761, MAX9762, MAX9763r

Jumper JU1 sets the MAX9760 slave address. The
default address is 1001 001Y (ADD = VDD). See Table
1 for a complete list of addresses.
Note: The first 7 bits shown are the address. Y (bit 0) is
the SMBus read/write bit. This bit is a 1 for a read oper-
ation or a zero for a write.
Jumper JU5 controls the shutdown function of the
MAX9760 EV kit. Removing the shunt from JU5 allows
the shutdown function to be controlled by an external
signal source connected to the SHDN pad. See Table 2
for shutdown shunt positions.
Figure 3. The above example shows a simple SMBusWriteByte operation using the included 2-Wire Interface Diagnostics. In this
example, the software is writing data (0x18) to Device Address 0x92, Register Address 0x01. The above data sequence mutes both
output channels of the MAX9760.
Table 1. Shunt Settings for SMBus Address
*Default configuration.
JUMPER
JU1
_______________________________________________________________________________________
Hardware Shutdown Control
SHUNT POSITION
11–12
9–10
1–2*
3–4
5–6
7–8
Address Selection
MAX9760/MAX9761 Evaluation
MAX9760 ADDRESS PIN
SGND
SDA
SCL
V
DD
(see the Gain Selection Table for more details).
To simulate a pair of headphones being inserted into
the headphone jack J5, remove the shunt from jumper
JU6. Connect the load to the LEFT, RIGHT, and GND
pads located by headphone jack J5 (see Table 3 for
jumper settings).
The MAX9760 EV kit includes circuitry to increase the
low-frequency (bass) response. To alter the bass
response (see Figure 4), follow the steps below:
1) Choose appropriate gains A
2) Choose the center frequency f
Not used for the MAX9760 or the MAX9762
System/Evaluation Kit
Manual Headphone Sense Control
1001 001Y
1001 010Y
1001 000Y
1001 011Y
BINARY
MAX9760 ADDRESS
1
and A
c
.
HEXADECIMAL
2
.
Bass-Boost
0x92
0x94
0x90
0x96
5