TLFD600 Datasheet, PDF (22/37 Pages) Texas Instruments – ADSL CODEC WITH INTEGRATED LINE DRIVER AND RECEIVER

TLFD600
ADSL CODEC WITH INTEGRATED LINE DRIVER AND RECEIVER
SLAS280B – MAY 2000 – REVISED NOVEMBER 2000
electrical characteristics, T_A = 25°C, analog power supplies = 3.3 V, digital power supplies = 3.3 V,
AVDD_DRIVER = 12 V, f_CLKIN = 35.328 MHz (unless otherwise noted) (continued)
reference voltage
REFP
TXBANDGAP, RXBANDGAP
REFM
VMID_ADC
PARAMETER
MIN TYP MAX UNIT
2.4 2.5 2.6 V
1.4 1.5 1.6 V
0.4 0.5 0.6 V
1.47
V
timing requirements over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted)
serial port (see Figures 18 and 19)
PARAMETER
td(1)
td(2)
td(3)
td(4)
td(5)
tsu
th
Delay time, FSX goes high after SCLK↑
Delay time, FSX goes low after SCLK↑
Delay time, SDX valid after SCLK↑
Delay time, FSR goes high after SCLK↑
Delay time, FSR goes low after SCLK↑
Set up time, SDR ready before SCLK↑
Hold time, SDR keep active after SCLK↑
SCLK
(Output)
MIN TYP MAX UNIT
4 ns
4 ns
4 ns
4 ns
4 ns
6
ns
2
ns
td(1)
FSX
(Output)
td(3)
td(2)
SDX
(Ouput)
Figure 18. Serial Interface Timing (TX Channel)
SCLK
(Output)
td(4)
FSR
(Output)
SDR
(Input)
td(5)
th
t(su)
Figure 19. Serial Interface Timing (RX Channel)
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