TCM38C17IDL Datasheet, PDF (9/22 Pages) Texas Instruments – QComboE FOUR-CHANNEL QUAD PCM COMBO

TCM38C17IDL
QCombo™ FOUR-CHANNEL (QUAD) PCM COMBO
SLWS040C – JUNE 1996 – REVISED OCTOBER 1999
timing requirements over recommended ranges of supply voltage and operating free-air temperature,
fixed-data-rate mode (see Figures 3 and 4)
tsu(FS)
tsu(PCMIN)
th(PCMIN)
th(RESET)
th(FS)
td(FS _{– FS)}
Setup time, frame sync, from FS↑ to MCLK↓
Setup time, receive data, from data valid to MCLK↓
Hold time, receive data, from MCLK↓ to data invalid
Hold time, RESET terminal ↑ to reset activation
Hold time, frame sync, from MCLK↑ to FS↓
Delay time, between MCLK↓ while any channel FS high and MCLK↓ while next
channel FS high (see Figure 6)
MIN
MAX
100 tc (MCLK) –100
10
60
100
10
tc(MCLK) × 7
tc(MCLK) × 64
UNIT
ns
ns
ns
ns
ns
µs
switching characteristics
propagation delay times over recommended ranges of operating conditions, fixed-data-rate mode (see
Figure 3)
PARAMETER
TEST CONDITION MIN MAX UNIT
tpd1
Transmit clock↑ to bit 1 data valid at PCMOUT (data enable time on time slot
entry) (see Note 8)
CL = 0 to 100 pF
0 145 ns
tpd2
Transmit clock↑ bit n to bit n data valid at PCMOUT (data valid time)
tpd3
Transmit clock↓ bit 8 to bit 8 hi-Z at PCMOUT (data float time on time slot exit)
(see Note 9)
NOTE 8: Timing parameters tpd1 and tpd3 are referenced to the high-impedance state.
CL = 0 to 100 pF
CL = 0 pF
0 145 ns
60 215 ns
absolute and relative delay times over recommended ranges of supply voltage and operating free-air
temperature
PARAMETER
TEST CONDITION
MIN TYP† MAX UNIT
Transmit absolute delay time to PCMOUT
Fixed data rate,
MCLK = 2.048 MHz,
Input to ANLGIN 1.02 kHz at 0 dBm0
500
µs
f = 500 Hz – 600 Hz
170
Transmit differential envelope delay time
relative to transmit absolute delay time
f = 600 Hz – 1000 Hz
f = 1000 Hz – 2600 Hz
95
µs
45
f = 2600 Hz – 2800 Hz
105
Receive absolute delay time to PWRO
Fixed data rate,
MCLK = 2.048 MHz,
Digital input is digital milliwatt codes
190
µs
f = 500 Hz – 600 Hz
45
Receive differential envelope delay time
relative to transmit absolute delay time
f = 600 Hz – 1000 Hz
f = 1000 Hz – 2600 Hz
35
µs
85
f = 2600 Hz – 2800 Hz
110
† _{All typical values are at VDD = 5 V, and TA = 25°C.}
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