TRANSMITTER ELECTRICAL CHARACTERISTICS

Symbol

Parameter

Test Conditions

Min.

Typ. Max.

Unit

Max Carrier Output AC Voltage

2.8

3.2

3.7

HD2

Second Harmonic Distortion

0.32

%

FD

FSK Peak-to-peak Deviation

BRS = 0

BRS = 1

600

1200

Hz

Hz

TRxTx

Carrier Activation Time

After Rx/Tx 1

→ 0 transition

1

ms

TALC

Carrier Stabilisation Time

ALC maximum settling time, 32 gain steps

5

ms

DRNG

ALC Dynamic Range

25

26

27

dB

VT1

ALC Low Threshold Voltage

1.81

1.87

V

VT2

ALC High Threshold Voltage

2.12

2.18

V

GST

ALC Gain Step

0.84

dB

PSRR1

PSRR2

Power supply rejection ratio on ATO

(see Note 1)

35

10

dB

dB

Note 1 : This characteristic is guaranteed by correlation.

RECEIVER ELECTRICAL CHARACTERISTICS

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

Maximum Input Signal

Input Impedance

100

k

Ω

RCJ

Recovered Clock Jitter

Percentage of the nominal clock

- 5

+ 5

%

PSRR1

PSRR2

Power supply rejection ratio on

RxFO (see Note 1)

35

10

dB

dB

Rx sensitivity (see Note 1)

Typical measured BER < 10

-5

BRS = 0

BRS = 1

2

3

BER1

BER2

Bit error rate at minimum Rx

signal (see Note 1)

White Noise, S/N = 15dB

2

3

10

-3

10

-3

BER3

Bit error rate at maximum Rx sig-

nal (see Note 1)

10

-7

10

-3

BER4

Bit error rate at medium Rx signal

(see Note 1)

10

-6

10

-3

BER5

Bit error rate with impulsive noise

(see Note 1)

f = 100Hz, duty cycle = 10%

10

-3

BER6

BER7

Bit error rate with modulated

sinusoidal noise Ns (see Note 1)

10

-3

10

-3

Note 1 : This characteristic is guaranteed by correlation

ST7536

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