CMX625 データシートの表示（PDF） - CML Microsystems Plc

部品番号

コンポーネント説明

メーカー

CMX625

ISDN TA POTS Interface

CML Microsystems Plc 

ISDN TA POTS Interface

CMX625

1.7.1.3 Operating Characteristics

For the following conditions unless otherwise specified:

VDD = 2.7V at Tamb = 25°C and VDD = 3.0V to 5.5V at Tamb = -40 to +85°C,

0dBm = 775mVrms = 0dBm0.

DC Parameters

IDD All Enabled, VDD = 5.0V

All Disabled, VDD = 5.0V

DTMF Rx only, VDD = 5.0V

Tx (tones, SPM) only, VDD = 5.0V

Tx Output Buffer only Enabled, VDD = 5.0V

PCM Codec only, VDD = 5.0V

All Enabled, VDD = 3.3V

All Disabled, VDD = 3.3V

DTMF Rx only, VDD = 3.3V

Tx (tones, SPM) only, VDD = 3.3V

Tx Output Buffer only Enabled, VDD = 3.3V

PCM Codec only, VDD = 3.3V

Logic ‘1’ Input Level (CMOS inputs)

Logic ‘0’ Input Level (CMOS inputs)

Logic Input Leakage Current (Vin = 0 to VDD)

Logic ‘1’ Input Level (TTL inputs)

Logic ‘0’ Input Level (TTL inputs), Vdd = 3.3V-5.5V

Output Logic ‘1’ Level DD, DU (IOH = 4mA)

Output Logic ‘0’ Level DD DU (IOL = 6mA)

Output Logic ‘0’ Level IRQN (IOL = 3mA)

IRQN O/P ‘Off State Current (VOUT = VDD)

Notes

1

1

1

1

1

1

1

1

1

1

1

1

3

3

3

3

3, 13

14

14

14

FSK Encoder and Tx UART

Level at TONEFSK pin

Twist (Mark level w.r.t. Space level)

Tx 1200bits/sec (V23 mode)

Baud Rate (set by UART and DCL)

Mark (Logical 1) Frequency

Space (Logical 0) Frequency

Tx 1200bits/sec (Bell 202 mode)

Baud Rate (set by UART and DCL)

Mark (Logical 1) Frequency

Space (Logical 0) Frequency

Notes

4

Min.

-

-

-

-

-

-

-

-

-

-

-

-

70%

-

-1.0

2.0

-

0.8

-

-

-

Min.

-1.0

-2.0

1194

1297

2097

1194

1197

2197

Typ.

6.9

140

2.4

3.5

1.8

3.1

5.0

80

1.6

2.3

1.3

2.3

-

-

-

-

-

-

-

-

-

Typ.

0

0

1200

1300

2100

1200

1200

2200

TONEFSK Signal Level

Level at TONEFSK pin for:

Single tone

Dual tone (per tone)

DTMF High Frequency Group

DTMF Low Frequency Group

Output Impedance

Tone frequency resolution

Tone output distortion

Notes

4

4

4

4

5

Min.

-1.0

-4.0

-4.0

-6.0

-

-2.5

-

Typ.

0

-3.0

-3.0

-5.0

10.0

-

0.8

Max.

-

-

-

-

-

-

-

-

-

-

-

-

-

30%

+1.0

-

0.8

-

0.4

0.4

1.0

Max.

1.0

+2.0

1206

1303

2103

1206

1203

2203

Max.

1.0

-2.0

-2.0

-4.0

-

2.5

-

Unit

mA

µA

mA

mA

mA

mA

mA

µA

mA

mA

mA

mA

V

V

µA

V

V

VDD

V

V

µA

Unit

dBm

dB

Baud

Hz

Hz

Baud

Hz

Hz

Unit

dBm

dBm

dBm

dBm

kΩ

Hz

%

 2001 Consumer Microcircuits Limited

28

D/625/2

Share Link: