TLFD500 Datasheet, PDF (30/38 Pages) Texas Instruments – 3.3 V INTEGRATED G.LITE ANALOG FRONT END

TLFD500PN
3.3 V INTEGRATED G.LITE ANALOG FRONT END
SLAS207B – JUNE 1999 – REVISED MAY 2000
electrical characteristics over recommended operating free-air temperature range,
f_MCLKIN = 35.328 MHz, AVDD_RX/AVDD_TX/AVDD_REF = 3.3 V, DVDD = DVDD_IO = DVDD_RX =
3.3 V, (unless otherwise noted) (continued)
RX channel (measured differentially)
PARAMETER
TEST CONDITIONS
Gain error
PGA 1 (0 to 12 dB in 3-dB steps)
PGA step gain error
PGA 2 (0 to 18 dB in 6-dB steps)
PGA 3 (0 to 9 dB in 0.25-dB steps)
DC offset
Cross-talk
TX to RX channel
Group delay
Idle-channel noise
Common-mode rejection ratio (CMRR)
Power supply rejection ratio (PSRR)
200 mVp-p at 75 kHz
Analog input self-bias dc voltage
RXINP/M
Input impedance
HPF1INP/M
HPF2INP/M
AC Performance
SNR Signal-to-noise ratio
THD Total harmonic distortion ratio
270 kHz at –1 dB (see Note 16)
TSNR Signal-to-noise + harmonic distortion ratio
163.875 kHz
MT Missing-tone test (see Note 17)
301.875 kHz
508.875 kHz
Channel Frequency Response (EQ[2:0] = 0 dB/MHz) (Refer to Figures 15 and 16)
180 kHz
Filter gain relative to gain at 276 kHz
Pass-band (ripple)
800 kHz
NOTES: 16. The analog input test signal is a sine wave with 0 dB = 3 Vp-p as the reference level.
17. 123 tones, 25.875 kHz to 552 kHz, 4.3125 kHz/step, –6 dB.
MIN TYP
–1.5
±1
±1
±0.15
50
–55
25
100
70
70
1.5
7
70
70
MAX UNIT
1.5 dB
dB
100 mV
dB
µs
µVrms
dB
dB
V
kΩ
pF
pF
72
82
dB
72
–57
–57
dB
–57
–1.5
–1
–25
1.5
1 dB
30
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