Philips Semiconductors

Product specification

SA1630

IF quadrature transceiver

1998 Jul 21

8

AC ELECTRICAL CHARACTERISTICS IF TRANSMIT MODULATOR

25

°C, unless otherwise stated.

SYMBOL

PARAMETER

TEST CONDITION

LIMITS

UNITS

SYMBOL

PARAMETER

TEST CONDITION

MIN

TYP

MAX

UNITS

Input modulation bandwidth

500 ohms source impedance

22

MHz

Voltage common mode = 1 to 2V

1

Vpp

THD_3

–55

–45

dBc

Input resistance

98

k

Ω

Input Capacitance

2

pF

Minimum Tx output DC voltage

V

IO DC

Mean output DC current

2

2.75

mA

40

µA

0.475

mA rms

400

190

mV rms

CS

Differential output

30

36

dBc

SBS

35

47

dBc

Noise floor

offset = 10 MHz

156

dBc/Hz

0.5

2.0

dB

Turn–on time

to transmit signal at 90% level

4

µs

Turn–off time

signal at 10% level

4

µs

NOTES:

1. Tx inputs are differential sine wave, 0.5 V peak, with quadrature relationship between I and Q Tx input. The output spectrum will be SSB.

The tone is at a frequency of 1 MHz.

2. The output current in each arm is the same but 180 degrees out of phase with each other. Also the tuned load of 400 ohms differential, is

assumed. The power delivered to 400 ohms will be –10.4 dBm (typ.). The output current measurement is indirect based on output power

W)/IMV. See typical performance characteristic curve.

3. This is measured with respect to the SSB output.

4. Guaranteed by design and or characterization but not final tested.

5. The input bandwidth may be verified by measuring the output THD and signal level using a DSB spectrum where I = Q.

6. Measured over temperature and supply.