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73K224BL

V.22bis/V.22/V.21/Bell 212A/103 Single-Chip Modem w/ Integrated Hybrid

Unspecified 

73K224BL

V.22bis/V.22/V.21/Bell 212A/103

Single-Chip Modem w/ Integrated Hybrid

DC ELECTRICAL CHARACTERISTICS

(TA = -40°C to 85°C, VDD = recommended range unless otherwise noted.)

PARAMETER

IDD, Supply Current

IDD1, Active

IDD2, Idle

Digital Inputs

VIL, Input Low Voltage

VIH, Input High Voltage

All Inputs except Reset

XTL1, XTL2

Reset, XTL1, XTL2

IIH, Input High Current

IIL, Input Low Current

Reset Pull-down Current

Digital Outputs

VOH, Output High Voltage

VOL, Output Low Voltage

RXD Tri-State Pull-up Curr.

OH Output VOL

Capacitance

CLK

Input Capacitance

CONDITION

CLK = 11.0592 MHz

ISET Resistor = 2 MΩ

Operating with crystal oscillator,

< 5 pF capacitive load on CLK pin

VI = VDD

VI = 0V

Reset = VDD

IO = IOH Min

IOUT = -0.4 mA

IO = IOUT = 1.6 mA

RXD = GND

IOUT = 40 mA

Maximum permitted load

All digital inputs

MIN

2.0

3.0

-200

2

2.4

-2

NOM

20

5

MAX

27

7

0.8

VDD

VDD

100

50

VDD

0.4

-50

TBA

25

10

UNIT

mA

mA

V

V

V

µA

µA

µA

V

V

µA

V

pF

pF

TXA1

RXA

R1

600Ω

R2

600Ω

C1

TXA2

1:1

600Ω

(NOMINAL TELEPHONE

LINE IMPEDANCE)

FIGURE 1: ANALOG INTERFACE HYBRID LOADING

NOTE: Parameters expressed in dBm0 refer

to signals at the telephone line, i.e., across

R2 in Figure 1.

The signals at TXA1 or TXA2 are each

≈ 8dB lower than at the line.

The signal at RXA is ≈ 3 dB lower than at the

line.

22

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