MGCT04 Ver la hoja de datos (PDF) - Zarlink Semiconductor Inc

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MGCT04

Transmit Circuit for TDMA/AMPS and CDMA/AMPS

Zarlink Semiconductor Inc 

MGCT04 Preliminary Information

Characteristics

Value

Min. Typ. Max.

Units

Conditions

Variable gain amplifiers

IF amp. operating frequency range 50

200

MHz

RF amp. operating frequency

750

range

2000 MHz

Overall gain control range

84 90

dB Voltage gain

Control voltage for minimum gain

0.1

V

Control voltage for maximum gain

2.6

V

AGC control voltage slope

33

60

dB/V

SSB mixer and UHF oscillator

inputs

Cellular band LO input level

-15 -10

-5

dBm From external UHF osc. via

matching network

PCS band LO input level

-15 -10

-5

dBm From external UHF osc. via

matching network

Cellular band local oscillator input 850

frequency. (LO 1GHz)

1100 MHz

PCS band local oscillator input

frequency (LO 2GHz)

1500

2150 MHz

900MHz RF output stage

Specifications assume 50 ohm

load driven via a matching network

(Fig. 6)

RF amplifier operating frequency

824

range

849

MHz

Output power

+8

+19

dBm Note 1

ACPR (CDMA)

-66

-52

dBc Pout = +3dBm Vcc = 3V

ACPR (TDMA)

-45

-30

dBc Pout = +8dBm, Offset = 30kHz

Vcc = 3V

-90

-60

dBc Pout = +8dBm, Offset = 60kHz

Vcc = 3V

Output power AMPS

+10 +14 +19

dBm Note 2

Receive band noise

-128

dBm/ At duplex frequency, offset 45MHz

Hz Pout = +3dBm

Receive band noise

(869 - 894MHz)

-123 121

dBm/ ftx = 849 MHz Pout = +8dBm

Hz

Spurious Outputs

LO Leakage

-30 -20

dBc Pout = +8dBm

Image Rejection

-30 -20

dBc Pout = +8dBm

Other Spurii

-20

dBm Note 3

Table 3 - AC Characteristics (continued)

4

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