Pin Configuration And Function Descriptions - Analog Devices AD5934 Manual

AD5934

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

Table 4. Pin Function Descriptions
Pin No. Mnemonic Description
1 to 3, 7 NC No Connect.
4 RFB External Feedback Resistor. Connect from Pin 4 to Pin 5. This pin sets the gain of the current-to-voltage amplifier
on the receive side.
5 VIN Input to Receive Transimpedance Amplifier. VIN presents a virtual earth voltage of VDD/2.
6 VOUT Excitation Voltage Signal Output.
8 MCLK The master clock for the system is supplied by the user.
9 DVDD Digital Supply Voltage.
10 AVDD1 Analog Supply Voltage 1.
11 AVDD2 Analog Supply Voltage 2.
12 DGND Digital Ground.
13 AGND1 Analog Ground 1.
14 AGND2 Analog Ground 2.
2
15 SDA I C® Data Input.
2
16 SCL I C Clock Input.
NC SCL
1
16
NC SDA
2
15
NC AD5934 AGND2
3
14
RFB AGND1
4
TOP VIEW 13
(Not to Scale)
VIN DGND
5
12
VOUT AVDD2
6
11
NC AVDD1
7 10
MCLK DVDD
8 9
NC = NO CONNECT
NOTES:
1. IT IS RECOMMENDED TO TIE ALL SUPPLY
CONNECTIONS (PIN 9, PIN 10, AND PIN 11)
AND RUN FROM A SINGLE SUPPLY BETWEEN
2.7V AND 5.5V.
2. IT IS ALSO RECOMMENDED TO
CONNECT ALL GROUND SIGNALS TOGETHER
(PIN 12, PIN 13, AND PIN 14).
Figure 3. Pin Configuration
Rev. A | Page 8 of 40