SA1638 Просмотр технического описания (PDF) - Philips Electronics

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SA1638

Low voltage IF I/Q transceiver

Philips Electronics 

Philips Semiconductors

Low voltage IF I/Q transceiver

Product specification

SA1638

AC ELECTRICAL CHARACTERISTICS (Continued)

SYMBOL

PARAMETER

TEST CONDITIONS

IF Transmit Modulator (continued)

Noise density at 600kHz

Noise density at 10MHz

|ITxIn| = |ITxInX| = |QTxIn| =

|QTxInX| = 0.75VPEAK

tON

Turn ON time

PdTx = LO, transmit signal to 90%

tOFF Turn OFF time

PdTx = HI, transmit signal to 10%

IF Receiver (R = 36kΩ between pins RESA and RESB)

RInRx Differential input impedance

ROutRx Output impedance

fIN = 400MHz

Output common mode voltage

f3dB Low pass filter -3dB bandwidth

Low pass filter attenuation:

200kHz

400kHz

600kHz

6.5MHz

13.0MHz

VG Voltage gain

Differential output PD into GSM

baseband relative to 1200Ω

source EMF

NF

Noise figure8

1200Ω source and external

matching resistor and inductor

Channel matching:

Gain

Phase

fIN = 400.005MHz

Output DC offset2

Differential, DCRES=562kΩ

IOUT

VOUT

P-1dB

Output drive current at each pin

Minimum differential output swing

Input 1dB compression point:

In band

200kHz

400kHz

600kHz

Source (Sink)

1200Ω source EMF

tON

Turn ON time3

POnRx = HI, to baseband signal

out

tOFF Turn OFF time

POnRx = LO, to no baseband

signal out

IF Synthesizer

fLO

Local oscillator input frequency

range9

ZLOIN Differential input impedance

Between pins LOIN and LOINX, fIN

= 800MHz

VLOIN LO peak input voltage range

Single-ended

Referred to 50Ω

Programmable divider:

Division range

Step size

fCLKIN

ZCLKIN

VCLKIN

IREF

Reference clock input frequency

Differential input impedance

CLKIN peak input voltage range

Charge pump input reference

current

VCLKIN = 100mVPEAK

Between pins ClkIn and ClkInX

Single-ended, referred to 50Ω

| ICP |

Charge pump output current:

c0...c2 = 000

c0...c2 = 111

Step size

IREF =31.2µA,

VCP = VCCCP/2

MIN

70

6.5

30

43

-1.5

-60

-59

-54

140

50

64

50

0.425

0.85

0.045

–3σ

-130

-133

8.9

38.1

49.4

5.7

-55.3

-49.3

0.487

0.979

0.062

LIMITS

TYP

-129

-131

5

5

5 || 0.6

1

VREF

83

10.7

45

70

>80

>80

51

7.0

-0.26

0.0

-25

10 (700)

2.0

-53

-47

-47

-47

2

2

276 || 0.6

1

10 || 1.0

31.2

0.5

1.0

0.071

+3σ

-128

-129

12.5

51.9

52.7

8.3

-50.7

-44.8

0.513

1.021

0.08

UNITS

MAX

dBc/Hz

µs

µs

kΩ || pF

kΩ

V

90

kHz

dB

58

dB

dB

1.5

dB

degrees

60

mV

µA

V

-47

-40

dBV

µs

µs

800 MHz

Ω || pF

100

mV

511

52

MHz

kΩ || pF

400

mV

µA

0.575

1.15

mA

0.105

1997 Sept 03

7

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