73M2901-32I-3 데이터 시트보기 (PDF) - TDK Corporation

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73M2901-32I-3

Advanced Single Chip Modem

TDK Corporation 

73M2901/3.3V

Advanced Single

Chip Modem

ELECTRICAL SPECIFICATIONS

ABSOLUTE MAXIMUM RATINGS

Operation above maximum rating may permanently damage the device.

PARAMETER

RATING

Supply Voltage

-0.5V to +7.0V

Pin Input Voltage

-0.5V to VPD + 0.5V

Storage Temperature

-55ºC to 150°C

RECOMMENDED OPERATING CONDITIONS

PARAMETER

Supply Voltage

Oscillator Frequency

Operating Temperature

RATING

3.15V – 3.6V

11.0592MHz +/- 50ppm

-40C to +85°C

TRANSMITTER

PARAMETER

ITU Guard Tone Power

Calling Tone

Answer Tone Power

DTMF Transmit Power

CONDITIONS

550Hz (relative to carrier)

1800Hz (relative to carrier)

1300Hz

2225/2100Hz

High band tones

Low band tones

MIN

NOM

MAX

-5

-3.5

-2

-8

-6.5

-5

-11

-9.0

-11

-9.0

-8.0

-6.0

-10

-8.0

UNIT

dB

dB

dBm01

dBm01

dBm01

MAXIMUM TRANSMIT LEVELS

Vref =1.25V; VPA = 3.3V

QAM

-9.6

DPSK

-7.4

FSK

-5.3

DTMF (high tone)

-7.9

DTMF (low tone)

-9.8

DTMF (total)

-5.7

Note: The recommended DAA (see the TDK 73M2901 Reference Manual) will result in approximately 8dB loss from the transmit pins to the

phone line. This includes the loss through the line matching impedance (475Ω resistor), transformer, and solid state off-hook relay.

1 dBm0 refers to the TDK recommended DAA ( 8dB loss from Transmit pins to the line and 5dB loss from the line to the Receive pin). Results

may vary depending on selected DAA. 0dBm = 0.775Vrms. dBm = 10log {Vrms2/[(1mW)(600Ω)]}

5

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