MSP58C20 Datasheet, PDF (8/17 Pages) Texas Instruments – AUDIO-BAND CONVERTER

MSP58C20
AUDIO-BAND CONVERTER
SPSS015B – DECEMBER 1993 – REVISED JULY 1996
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature, ADCLK input frequency = 1.024 MHz, PWDA = L and PWAD = L (power-up mode)
(unless otherwise noted) (continued)
DAC receive characteristics (continued)
PARAMETER
TEST CONDITIONS
Ilkg Leakage current
AOP
AOM
Output impedance,
differential, between
AOP and AOM
(see Note 4)
Transmit-to-receive
crosstalk
Transmit input = one frequency in 0.3-kHz to 3.4-kHz band at – 3 dBrl,
Receive channel idle,
Crosstalk measured at receive analog output
NOTE 4. This parameter is characterized but not tested.
MIN TYP MAX UNIT
– 10
10
µA
–10
10
30
kΩ
– 70 dB
timing requirements over recommended ranges of supply voltage and operating free-air
temperature
PARAMETER
TEST CONDITIONS
tsu1
Transmit setup time at power up
(PWAD transition from H to L)
ADCLK input frequency = 1.024 MHz,
See Note 11
tsu2
Receive setup time at power up
(PWDA transition from H to L)
ADCLK input frequency = 1.024 MHz,
See Note 12
tsu3 Receive setup time, DIGS or DIGL setup before ADCLK↑
th Receive hold time, DIGS or DIGL hold after ADCLK↑
tc Cycle time, ADCLK
tw1 Pulse duration, ADCLK high
tw2 Pulse duration, ADCLK low
tf Fall time, ADCLK
tr Rise time, ADCLK
See Figure 4
See Figure 4
NOTES: 11. After the setup time, the transmit channel displays normal operating characteristics.
12. After the setup time, the receive channel displays normal operating characteristics.
MIN TYP MAX UNIT
20
µs
20
µs
50
ns
50
ns
1
µs
470
ns
470
ns
20 ns
20 ns
switching characteristic over recommended ranges of supply voltage and operating free-air
temperature
PARAMETER
ta
Transmit access time, ADOUT after ADCLK↑ (see Note 4)
NOTE 4. This parameter is characterized but not tested.
TEST CONDITION
See Figure 3
MIN TYP MAX UNIT
100 ns
8
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