Preliminary Data Sheet

AS3801

Rev. C

4/7

Nov. 98

Pin Description

Pin#

Symbol

Function

1

CDMA+

CDMA Positive Differential Input

2

CDMA-

CDMA Negative Differential Input

3

GND

Analog Ground

4

GND

Analog Ground

5

GND

Analog Ground

6

GND

Analog Ground

7

GND

Analog Ground

8

PWD

Power down, CMOS Input

9

OUT-

Analog Differential Output

10

OUT+

Analog Differential Output

11

GND

Analog Ground

12

GND

Analog Ground

13

VCC

VCC Power Supply

14

VCC

VCC Power Supply

15

VCC

VCC Power Supply

16

VCTRL

Analog Control Input

VCTRL=0.2V, Low Gain Rail; VCTRL=3V, High Gain Rail

Definition of CDMA Source Impedance,

IF Signal

Source

CDMA+

Zs=1k

Ω

Zin=1k

Ω (typ)

Vp

Vn

CDMA-

TX-CDMA

Measurement

Reference Plane

OUT+

Output

Port

OUT-

VCC

L2

L1

TX-CDMA Output Port Impedance

Ω

Load Impedance

Ω

Bias Resistor

R=1k

Ω

Bias Inductors

ω.L>>R

B

Effective Load

Ω