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W3030

3 V Dual-Mode IF Cellular Receiver

Agere -> LSI Corporation 

W3030 3 V Dual-Mode IF Cellular Receiver

Data Sheet

April 1999

Electrical Specifications (continued)

Table 7. Digital Second IF Amplifier, AGC, Quadrature Demodulator Section

PCLK = 320 mVp-p to 640 mVp-p (square wave); IF deviation = ≤0.5 MHz; VCM = 1.3 Vdc to VCC – 0.8 Vdc.

Parameter

Min

Typ

Max

Unit

IF Input Impedance

—

2

—

kΩ

CLK Input Impedance

—

28 II 8.2

—

kΩ II pF

Baseband: –3 dB Bandwidth

—

150

—

kHz

AGC Control Input Resistance

—

500

—

kΩ

AGC Control Voltage Range

—

0.9 ± 0.65

—

Vdc

AGC Transfer Function

11

18

23

mV/dB

AGC Gain Linearity, VAGC = 0.3 to 1.1

—

±1.5

±2.5

dB

I and Q Phase Accuracy

–2

0.4

2

degrees

I and Q ac Amplitude Mismatch

–0.3

±0.05

0.3

dB

I and Q Maximum Output Swing (differential, compressed)

—

2

—

Vp-p

I and Q Common-mode Voltage as Function of VCM, i.e., VCM – 0.08 VCM input VCM + 0.08 Vdc

VI + VI or VQ + VQ

2

2

I and Q Differential Offset Voltage

—

0

35

mV

I and Q Maximum Sink Current per Pin (sum of dc and

—

100

—

µA

peak ac)

I and Q Maximum Source Current per Pin (sum of dc and

—

1

—

mA

peak ac)

IP3 at Output (I or Q, differential)

—

15

—

dBm/50 Ω

1 dB Compression Point (at output, differential)

—

7

—

dBm/50 Ω

Noise Figure @ IF Input, Differential I + jQ

—

11

—

dB

VCM Input Impedance

—

400

—

kΩ

Table 8. Digital Gain and First IF Mixer Input to Baseband

PCLK = 320 mVp-p to 640 mVp-p (square wave); IF deviation = ≤0.5 MHz; VCM = 1.3 Vdc to VCC – 0.8 Vdc.

Gain numbers include –1.5 dB filter loss.

Gain VAGC = 1.1 V

Gain VAGC = 0.3 V

Parameter

Min

Typ

Max

Unit

91

99

128

dB

36

54

60

dB

10

Lucent Technologies Inc.

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