Datasheet

Preliminary Technical Data EVAL-AD5933EB
Rev. PrC | Page 7 of 32
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
NC 1
NC 2
NC 3
RFB 4
SCL 16
SDA 15
AGND2 14
AGND1 13
VIN 5
VOUT
6
NC 7
DGND 12
AVDD2 11
AVDD1
10
MCLK 8
DVDD 9
NC = NO CONNECT
05435-003
AD5933
TOP VIEW
(Not to Scale)
Figure 3. Pin Configuration
Table 5. Pin Function Descriptions
1, 2
Pin No. Mnemonic Description/Comment
1, 2, 3, 7 NC No Connect.
4 RFB
External Feedback Resistor. Connected from Pin 4 to Pin 5 and used to set the gain of the current-to-voltage
amplifier on the receive side.
5 VIN Input to Receive Transimpedance Amplifier. Presents a virtual earth voltage of VDD/2.
6 VOUT Excitation Voltage Signal Output.
8 MCLK Master Clock for the System (User Supplied).
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.
15 SDA I
2
C Data Input. Open-drain pins requiring 10 kΩ pull-up resistors to VDD.
16 SCL I
2
C Clock Input. Open-drain pins requiring 10 kΩ pull-up resistors to VDD.
1
It is recommended to tie all supply connections (Pin 9, Pin 10, and Pin 11) together and to run the device from a single supply between 2.7 V and 5.5 V.
2
It is recommended to connect all ground signals (Pin 12, Pin 13, and Pin 14) together.