A5191HRT

Table 6: AC Characteristics

Pin Name

Description

Min.

Typ.

Max.

Units

IRXA

Receive analog input

Leakage current

Frequency – mark (logic 1)

Frequency – space (logic 0)

1190

2180

1200

2200

±150

1210

2220

nA

Hz

Hz

ORXAF

Output of the high-pass filter

Slew rate

Gain bandwidth (GBW)

Voltage range

150

0.15

0.025

VDD – 0.15

V/μs

kHz

V/μs

IRXAC

Carrier detect and receive filter input

Leakage current

±500

nA

OTXA

Modulator output

Frequency – mark (logic 1)

Frequency – mark (logic 0)

Amplitude (IAREF 1.235V)

Slope

Loading (IAREF = 1.235V)

30

1196.9

2194.3

500

2.79

Hz

Hz

mVDD

mV/μs

kΩ

ORXD

Receive digital output

Rise/fall time

20

ns

OCD

Carrier detect output

Rise/fall time

20

ns

The modular output frequencies are proportional to the input clock frequency (460.8kHz).

Table 7: Modem Characteristics

Parameter

Min.

Typ.

Max.

Units

Demodulator jitter

Conditions

1. Input frequencies at 1200Hz ±10Hz, 2200Hz ± 20Hz

2. Clock frequency of 460.8kHz ± 0.1%

3. Input (HLXA) asymmetry, 0

12

% of 1 bit

Table 8: Ceramic Resonator - External Clock Specifications

Parameter

Min.

Typ.

Max.

Units

Resonator

Tolerance

Frequency

460.8

1.0

%

kHz

External

Clock frequency

Duty cycle

Amplitude

456.2

40

460.8

50

VOH - VOL

465.4

60

kHz

%

V

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