Texas Instruments TCM4300 manual Transmit TX Channel Frequency Response Digital Mode

2.5Operating Characteristics Over Full Range of Operating Conditions (Unless Otherwise Noted)

2.5.1Receive (RX) Channel Frequency Response (RXI, RXQ Input in Digital Mode)

PARAMETER	TEST CONDITIONS		MIN TYP	MAX	UNIT
	0.125 V peak-to-peak,	0 kHz to 8 kHz (see Note 4)	± 0.5	± 0.75
	0.125 V peak-to-peak,	8 kHz to 15 kHz (see Note 5)		± 1
Frequency	0.125 V peak-to-peak,	16.2 kHz to 18 kHz (see Note 5)	± 26		dB
response	0.125 V peak-to-peak,	18 kHz to 45 kHz (see Note 5)	± 30
	0.125 V peak-to-peak,	45 kHz to 75 kHz (see Note 5)	± 46
	0.125 V peak-to-peak,	> 75 kHz	± 60
Peak-to-peak
group delay	0.125 V peak-to-peak,	0 kHz to 15 kHz		2	μs
distortion
Absolute channel
delay, RXI, Q IN to	0.125 V peak-to-peak,	0 kHz to 15 kHz	325		μs
digital OUT

NOTES: 4. Deviation from ideal 0.35 square-root raised-cosine (SQRC) response

5.Stopband

2.5.2Receive (RX) Channel Frequency Response (FM Input in Analog Mode)

PARAMETER	TEST CONDITIONS		MIN TYP MAX	UNIT
	2.5 V peak-to-peak,	0 kHz to 6 kHz (see Note 6)	± 0.5
Frequency response				dB
	2.5 V peak-to-peak,	20 kHz to 30 kHz (see Note 5)	± 18
	2.5 V peak-to-peak,	34 kHz to 46 kHz (see Note 7)	± 48
Peak-to-peak group	2.5 V peak-to-peak,	0 kHz to 6 kHz	2	μs
delay distortion
Absolute channel delay	2.5 V peak-to-peak,	0 kHz to 6 kHz	400	μs

NOTES: 5. Stopband

6.Ripple magnitude

7.Stopband and multiples of stopband

2.5.3Transmit (TX) Channel Frequency Response (Digital Mode)

PARAMETER	TEST CONDITIONS	MIN TYP MAX	UNIT
	0 kHz to 8 kHz (see Note 4)	± 0.3
	8 kHz to 15 kHz (see Note 4)	± 0.5
Frequency response	20 kHz to 45 kHz (see Note 5)	± 29	dB
	45 kHz to 75 kHz (see Note 5)	± 55
	> 75 kHz (see Note 5)	± 60
	Any 30 kHz band centered at > 90 kHz (see Note 5)	± 60
Peak-to-peak group	0 kHz to 15 kHz	3	μs
delay distortion
Absolute channel delay	0 kHz to 15 kHz	320	μs
NOTES: 4. Deviation from ideal 0.35 square-root raised-cosine (SQRC) response
5. Stopband

2±6