TDK 73M2901/5V manual Receiver Parameter Conditions MIN NOM MAX Unit

73M2901/5V Advanced Single Chip Modem

ELECTRICAL SPECIFICATIONS (continued)

TRANSMITTER

PARAMETER	CONDITIONS		MIN	NOM	MAX	UNIT
Gain Adjust	By step		-0.3	0	0.3	dB
Tolerance
Transmit Gain Boost	SFR 96h bit 1 (TXBOOST) = 1		4.8	5.1	5.4	dB
Total Harmonic	1Khz sine wave at output (TXAP-TXAN)
Distortion (THD)	1.5Vpk(2.7dBm) for Vref=1.25V				-50	dB
	2.4Vpk (6.8dBm) for Vref=2.25V
	THD = 2nd and 3rd harmonic.
Intermod Distortion	At output (TXAP-TXAN)		each	unwanted
	1.0kHz, 1.2 kHz sine waves summed		frequency		-33	dB
	2.0Vpk for Vref=1.25V		component
	2.4Vpk for Vref=2.25V
	Refer to CTR21 specification for complete
			sum of			dB
	description of requirements		unwanted
					-20	below
			frequency
						low
			components in
						tone
			pass band
Power Supply	-30 dBm signal at VPA
Rejection Ratio	300Hz – 30kHz. Measured TXAP to TXAN.				30.0	dB
RECEIVER
PARAMETER		CONDITIONS	MIN	NOM	MAX	UNIT
Carrier Detect On		Tip and Ring	-43.0			dBm01
Carrier Detect Off		Tip and Ring	-48.0			dBm01
Carrier Detect Hysteresis		Tip and Ring		2.0		dB
Receive Level		Tip and Ring	-43.0		-9.0	dBm01
Idle Channel Noise		0.2kHz - 4.0kHz		-70	-65	dB

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