CX74037 Ver la hoja de datos (PDF) - Conexant Systems

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CX74037

Transmit RF IC for TDMA or AMPS Applications

Conexant Systems 

Transmit RF IC for TDMA or AMPS Applications

CX74037

Table 4. CX74037 Electrical Characteristics (1 of 3)

VCC = 3.0 V, TA = 25 oC, PLO = –10 dBm, input externally matched

Parameter

Symbol Test Conditions

Min

Typical

Max

Units

Input frequency range (2X IF frequency)

Input signal level

IF VCO Input

100

640

MHz

–10

–3

+3

dBm

I/Q Modulator (Output Not Measurable)

Input voltage level, differential

1.4

Vp-p

Common mode input voltage level

Input DC offset

Input impedance

Gain variation over process, temperature,

VCC

1.4

1.85

2.1

V

4

mV

100K

Ω

0.4

dB

I/Q gain mismatch

I/Q phase imbalance

0.3

0.4

dB

2

4

degrees

Transmit VGA

VGA frequency range (–1 dB bandwidth)

50

320

MHz

VGA gain (with a 600 Ω differential load):

Maximum

Minimum

VGA gain variation with VCC 3.0 to 3.6 V @

VCTRL 2 V

Gain variation with temperature

22

24

26

dB

–64

–62

–60

dB

–3

+3

dB

–1.0

+1.0

dB

Gain control input impedance

VGA gain slope

VGA gain control range

40K

Ω

45

50

55

dB/V

0.5

2.5

V

Gain slope variation over any 6 dB segment

Output power level @ 20 dB gain

P1dB @ 22 dB gain

–3

+3

dB/V

–13

dBm

–3

dBm

NF @ 22 dB gain

NF at -52 dB gain

Operating temperature range

6

dB

52

53

dB

–30

+25

+80

°C

Cellular Upconverter

LO frequency range

1017

1043

MHz

LO input return loss (reference to 50 Ω)

Output frequency

Output return loss from 824 MHz to 849 MHz

(reference to 50 Ω)

Conversion gain

Gain degradation @ VCC 2.7 V

ACPR in 30 kHz at 30 kHz offset @ –5 dBm

output; cascaded

ACPR in 30 kHz at 60 kHz offset @ –5 dBm

output; cascaded

–10

dB

824

849

MHz

–15

dB

7

8

9

dB

0.1

dB

–33

dBc

–56

dBc

101103A

Conexant – Proprietary

5

September 27, 2000

Data Subject to Change

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