TCM4300IPZ datasheet(17/69 Pages) TI1

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2–3

2.4.3

Terminal Impedance

FUNCTION

MIN

TYP†

MAX

UNIT

Receive channel input impedance (single ended), RXIP/N and RXQP/N

Ω

Transmit channel output impedance (single ended), TXIP/N and TXQP/N

100

Ω

FM input impedance, WBD

200

Ω

MCLKOUT impedance

MCLKOUT at 3.3 V

240

Ω

MCLKOUT impedance

MCLKOUT at 5 V

180

Ω

† All typical values are at DVDD = 5 V, AVDD = 5 V, and TA = 25°C, unless otherwise specified.

2.4.4

RXIP, RXIN, RXQP, and RXQN Inputs (AVDD = 3 V, 4.5 V, 5 V)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Input voltage range

0.3

AVDD– 0.3

Input voltage for full-

Differential

0.5

Vpp

scale digital output

Single ended

0.5

Vp-p

Nominal operating

Differential

0.125

Vp p†

level

Single ended

0.125

Vp-p†

Input CMRR (RXI, RXQ)

Sampling frequency, SINT (digital

mode)

48.6

kHz

Sampling frequency, SINT (analog

mode)

kHz

Receive error vector magnitude (EVM)

I/Q sample timing skew

Input signal 0 – 15 kHz

A / D resolution

bits

Signal-to-noise plus distortion

Input at full scale – 1 dB

Integral nonlinearity

0 dB to – 60 dB input

LSB

Gain error (I or Q channel)

±7%

Gain mismatch between I and Q

±0.3

Differential dc offset voltage

±30

FM input sensitivity, full scale

(

14-kHz deviation)

2.5

Vp-p

FM input dc offset (relative to VHR)

±80

FM input idle channel noise, below

full-scale input

– 50

FM gain error

±6%

Power supply rejection

f = 0 kHz to 15 kHz

† Provides 12-dB headroom for AGC fading conditions.

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