REV. 0

–9–

AD6600

PIN FUNCTION DESCRIPTIONS

Pin Number

Name

Function

1, 33

DVCC

Digital VCC for Digital Outputs. Can be 3.3 V.

2, 5, 13, 19, 21, 24, 30, 32

GND

Ground.

3

C1

Internal Bias Point. Bypass by 0.01

µF to GND.

4, 14, 15, 18, 20, 25, 31

AVCC

5 V Power Supply.

6–8

RSSI[2:0]

RSSI Digital Output Bits.

9, 10

B_SEL, A_SEL

Mode Select Pins for Analog Input Channel A and B Sampling.

11

AIN

True Analog Input Channel A.

12

AIN

Complementary Analog Input Channel A.

16, 17

FLT, FLT

Resonant Filter Pins for External LC Noise Filter.

22

BIN

Complementary Analog Input Channel B.

23

BIN

True Analog Input Channel B.

26

ENC

Complementary Encode Input.

27

ENC

True Encode Input.

28

CLK2

×

2

× Clock Output Used for Clocking Digital Filter Chips.

29

AB_OUT

Digital Output Flag Indicating Whether Output Is Input A (High) or B (Low).

34

D0

Digital Data Output Bit (Least Significant Bit)

*.

35–43

D1–D9

Digital Data Output Bits

*.

44

D10

Digital Data Output Bit (Most Significant Bit)

*.

*Digital Outputs (D10:D0) in Two’s Complement Format.

PIN CONFIGURATION

3

4

5

6

7

1

2

10

11

8

9

40 39 38

41

42

43

44

36 35 34

37

29

30

31

32

33

27

28

25

26

23

24

PIN 1

IDENTIFIER

TOP VIEW

(Not to Scale)

12 13 14 15 16 17 18 19 20 21 22

DVCC

GND

AVCC

GND

AB_OUT

CLK2

ENC

AD6600

ENC

AVCC

GND

BIN

DVCC

GND

C1

AVCC

GND

RSSI2

RSSI1

RSSI0

B_SEL

A_SEL

AIN