AD6190

–4–

REV. 0

PIN FUNCTION DESCRIPTIONS

No.

Pin Name

Type

Function/Description

1

PREOUT

Output

Prescaler Output. Usually connected to input of external low frequency

CMOS synthesizer (Fujitsu MB87006A, Siemens PMB2307, or similar).

2

VCOON

Control

Logic “1” turns on power to VCO, and divider/prescalers.

3

VBATT

Power

VBATT connection for regulator. Normally connected to 3.3 V dc or battery.

4

VBASE

Power

Base connection to external regulator pass transistor (MMBT3906 or similar).

5

TANK–

Input

Connection for VCO tank circuit (LC network).

6

GND

Power

Substrate ground connection.

7

TANK+

Input

Connection for VCO tank circuit (LC network).

8

RSSI

Output

Received Signal Strength Indicator output signal.

9

TXIF

Input

Accepts modulated transmit signal at 10.7 MHz IF.

10

VREG

Power

Regulated VCC for LO from external pass transistor.

11

RXON

Control

Logic “1” turns on power to LNA and receive mixer stages.

12

LIMIN

Input

Input to limiting amplifier.

13

IFAMPCOM

Input

Input signal common for limiting amplifier.

14

IFAMPOUT

Output

Output of first stage of IF amplifier. Normally connected through 10.7 MHz

filter to Pin 12 (LIMIN).

15

IFAMPIN

Input

Input to first stage of IF amplifier.

16

VCCIF

Power

Local VCC connection for IF amp/limiter stages.

17

RXMIXOUT

Output

10.7 MHz IF Output. Normally connected through 10.7 MHz filter to IF

amplifier input (Pin 15).

18

LNAGND

Power

Local ground for LNA.

19

GND

Power

Substrate ground connection.

20

RFIN

Input

LNA Input. Normally driven single-ended from 50

Ω source impedance.

21

VCCLNA

Power

VCC for LNA.

22

GND

Power

Substrate ground connection.

23

LIMOUT

Output

10.7 MHz limiter output.

24

PAGND

Power

Local ground for PA stage emitter. Degeneration may be added.

25

RFOUT

Output

Transmitted RF output signal at 0 dBm level.

26

VCCTX

Power

Local VCC connection for TX stages.

27

TXON

Control

Logic “1” turns on power to transmit mixer, buffers, and PA stages.

28

PREMOD

Input

Prescaler Modulus control (HIGH = divide-by-64; LOW = divide-by-65).

PIN CONFIGURATION

PREOUT

RFOUT

VCCTX

TXON

PREMOD

VCOON

VBATT

VBASE

GND

LIMOUT

PAGND

TANK

GND

TANK+

RSSI

TXIF

VREG

LNAGND

RFIN

VCCLNA

RXON

LIMIN

IFAMPCOM

IFAMPOUT

LNAGND

IFAMPIN

VCCIF

RXMIXOUT

TOP VIEW

(Not to Scale)

28

27

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25

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16

15

1

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AD6190