Philips cgy2020g DATASHEETS

INTEGRATED CIRCUITS

DATA SH EET

CGY2020G

DCS 2 W power amplifier

Objective specification
File under Integrated Circuits, IC17

1996 Jul 17

Philips Semiconductors Objective specification

DCS 2 W power amplifier CGY2020G

FEATURES

• Power Amplifier (PA) overall efficiency 42%

• 33 dB gain

• 0 dBm input power

• Gain control range >50 dB

• Integrated power sensor driver

• Low output noise floor of PA <−121 dBm/Hz in DCS RX

band

• Wide operating temperature range −20 to +85 °C

• LQFP 48 pin package

• Compatible with power ramping controller PCA5075.

APPLICATIONS

• 1710 to 1785 MHz hand-held transceivers for DCS
applications

• 1800 MHz Time Division Multiple Access (TDMA)
systems.

QUICK REFERENCE DATA

SYMBOL PARAMETER

V

DD

I

DD

P

o(max)

T

amb

positive supply voltage − 4.5 − V
positive peak supply current − 1.1 − A
maximum output power − 33 − dBm
operating ambient temperature −20 − +85 °C

(1)

GENERAL DESCRIPTION

The CGY2020G is a DCS class 1 GaAs Monolithic
Microwave Integrated Circuit (MMIC) power amplifier
specifically designed to operate at 4.8 V battery supply.

The chip also includes a power sensor driver so that no
directional coupler is required in the power control loop.

The PA requires only a simple low-pass filter to comply
with the DCS transmit spurious specification. It can be
switched off and its power controlled by monitoring the
actual drain voltage applied to the amplifier stages.

MIN. TYP. MAX. UNIT

Note

1. For conditions, see Chapters “AC characteristics” and “DC characteristics”.

ORDERING INFORMATION

PACKAGE

TYPE NUMBER

NAME DESCRIPTION VERSION

CGY2020G LQFP48 plastic low profile quad flat package; 48 leads; body 7 x 7 x 1.4 mm SOT313-2

1996 Jul 17 2

Philips Semiconductors Objective specification

DCS 2 W power amplifier CGY2020G

BLOCK DIAGRAM

handbook, full pagewidth

RFI

(1) Ground pins 1 to 7, 11 to 16, 18, 19, 21 to 26, 28 to 31, 33, 34, 36, 37 and 39 to 48.

V

DD1

38 27 20

35

(1)

GND

V

DD2

V

DD3

32

V

GG

Fig.1 Block diagram.

CGY2020G

SENSOR

DRIVER

8,9,10

MGG163

17

DETO/V

DD5

RFO/V

DD4

PINNING

SYMBOL PIN DESCRIPTION

GND 1 to 7 ground
RFO/V

DD4

8 to 10 PA output and fourth stage supply voltage
GND 11 to 16 ground
DETO/V

DD5

17 power sensor output and supply voltage
GND 18 and 19 ground
V

DD3

20 third stage supply voltage
GND 21 to 26 ground
V

DD2

27 second stage supply voltage
GND 28 to 31 ground
V

GG

32 negative gate supply voltage
GND 33 and 34 ground
RFI 35 PA input
GND 36 and 37 ground
V

DD1

38 first stage supply voltage
GND 39 to 48 ground

1996 Jul 17 3

Philips Semiconductors Objective specification

DCS 2 W power amplifier CGY2020G

handbook, full pagewidth

RFO/V
RFO/V

RFO/V

GND

GND

GND

GND

GND

GND

GND

DD4
DD4

DD4
GND
GND

GND

GND
39

22

GND

DD1

V

38

23

GND

GND

24 37

GND

36
35
34
33
32
31
30
29
28
27
26
25

MGG162

GND
RFI
GND
GND
V

GG

GND
GND
GND
GND

V

DD2

GND
GND

GND

GND
47

14

GND

46

15

GND

GND

GND

45

44

CGY2020G

16

17

DD5

GND

DETO/V

GND
48

1
2
3
4
5
6
7
8

9
10
11
12

13

GND

GND
43

18

GND

GND

42

19

GND

GND
41

20

DD3

V

GND
40

21

Fig.2 Pin configuration.

1996 Jul 17 4