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EVB3011

1 GHz Quadrature Modulator

Agere -> LSI Corporation 

Data Sheet

September 1999

W3011

1 GHz Quadrature Modulator

Electrical Characteristics (continued)

Table 5. ac Specifications

Conditions unless otherwise noted: 2.7 ≤ VCC ≤ 3.3 Vdc; TA = 25 °C ± 3 °C; RL = 50 Ω, VAPC = 2.7 Vdc;

fRF = 900 MHz, fLOL = 130 MHz, fLOH = 1030 MHz, –15 dBm < PLOL, PLOH < –5 dBm;

I – I = 0.4 cos(2πt Ÿ 80 kHz), Q – Q = 0.4 cos(2πt Ÿ 80 kHz – π/2), Vbias of I, I , Q, and Q = 1.22 Vdc.

Parameter

Min Typ Max Unit

I&Q

I & Q Signal Path 0.5 dB Bandwidth

—

5

—

MHz

I & Q Input Resistance

— 200

—

kΩ

I & Q Input Capacitance to Ground

—

5

—

pF

I & Q Input Differential Signal for Max Output

—

0.8

—

Vp-p

Offset Mixer

LOL Input Impedance

LOH Input Impedance

—

50

—

Ω

—

50

—

Ω

LO Input Impedance (pins LC1, LC2)

— 480//1 —

Ω//pF

LOL Input IP3

—

10

—

dBm

Modulation Accuracy (POUT = –1 dBm)

Carrier Suppression (POUT = –1 dBm)

— –35 –28 dBUSB

Carrier Suppression (entire usable APC range)

—

—

–26 dBUSB

Origin Offset (DQPSK inputs, all usable APC levels)

—

—

–23

dBc

Error Vector Magnitude (See Explanation of Error Vector Magnitude

(EVM) Testing section.)

—

2.5

5

%

Lower Sideband (LSB) Suppression (See Figure 3.)

— –43 –34 dBUSB

RF Output

Output Power (0.8 Vp-p differential or single-ended 80 kHz sine-wave

inputs to I and Q, with 90° between I and Q)

–1

3

—

dBm

Adjacent Channel Suppression (0.282 Vrms differential I and Q inputs,

π/4 – DQPSK modulation, random data):

Per PDC (RCR STD-27):

±50 kHz, All Usable APC Levels

±100 kHz, All Usable APC Levels

±100 kHz, Max RF Output (APC > 2.2)

Per IS-136/IS-137 800 MHz Digital Mode:

±30 kHz, All Usable APC Levels

±60 kHz, All Usable APC Levels

— –65 –55

dBc

—

—

–62

dBc

— –75 –65

dBc

— –45 –36

dBc

— –60 –50

dBc

Noise Floor Suppression, FC ± >100 kHz

— –120 –112 dBc/Hz

APC (Automatic Power Control) Function

Range of Usable Output Power Control for Japan PDC (RCR STD-27),

from Max Power at APC = 2.7 V to Minimum APC Voltage Where

Requirements for ACP and Carrier Suppression Are Still Met Using

π/4 – DQPSK/α = 0.5 Modulation at 0.282 Vrms Differential I and Q

Inputs:

Offset Mixer Not Used

Offset Mixer Used

29

40

—

dB

39

45

—

dB

Output Power Variation Due to Temperature, within Usable Control Range —

4

6

dB

RF Power Change Time (after APC change)

—

—

2

µs

APC Voltage for Max Output Power

—

2.2

—

Vdc

APC Voltage for Min Output Power

—

0.8

—

Vdc

Lucent Technologies Inc.

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