Texas Instruments TRF1500 Benutzerhandbuch

TRF1500 Integrated Dual-Band RF Receiver User’s Guide

15

Table 1.  Pin Descriptions

1

Bias Adjust

Bias adjust

2

TX IF +

Transmit IF, noninverting output

3

TX IF -

Transmit IF, inverting output

4

GND

ground

5

MIX IN LOW BAND

Low band mixer input

6

GND

ground

7

VCC

Vcc

8

 GND

Ground

9

TX +

Transmit, noninverting input

10

TX -

Transmit, inverting input

11

GND

Ground

12

IR ADJUST D

Image rejection adjustment

13

HI/LO

High band/low band select

14

SYN ON

VCO power control

15

HIGH BAND IF +

High band IF noninverting output

16

HIGH BAND IF -

High band IF, inverting output

17

LOW BAND IF +

Low band IF noninverting output

18

LOW BAND IF -

Low band IF, inverting output

19

GND

ground

20

HIGH BAND LO +

High band noninverting LO output

21

HIGH BAND LO -

High band, inverting LO output

22

LOW BAND LO +

Low band noninverting LO output

23

LOW BAND LO -

Low band, inverting LO output

24

RX ON

Low noise amplifier/mixer power control

25

VCC

Vcc

26

TX ON

Transmit mixer/driver power control

27

HIGH BAND LO IN -/RF GND

High band LO inverting input/RF GND

28

HIGH BAND LO IN +

High band LO noninverting input

29

GND

ground

30

DOUDLER TANK

Doubler output

31

VCC

VCC

32

LOW BAND LO IN

Low band LO input

33

GND

ground

34

GND

ground

35

X2 ON

Doubler power control

36

IR ADJUST A

Image rejection adjustment

37

IR ADJUST B

Image rejection adjustment