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TCM129C14DW Fiches technique(PDF) 10 Page - Texas Instruments

No de pièce TCM129C14DW
Description  COMBINED SINGLE-CHIP PCM CODEC AND FILTER
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

TCM129C14DW Fiches technique(HTML) 10 Page - Texas Instruments

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TCM29C13, TCM29C14, TCM29C16, TCM29C17,
TCM129C13, TCM129C14, TCM129C16, TCM129C17
COMBINED SINGLE-CHIP PCM CODEC AND FILTER
SCTS011H – APRIL 1986 – REVISED JULY 1996
10
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
receive filter transfer over recommended ranges of supply voltage and operating free-air
temperature (see Figure 2)
PARAMETER
TEST CONDITIONS
MIN
MAX
UNIT
f < 200 Hz
0.15
f = 200 Hz
– 0.5
0.15
f = 300 Hz to 3 kHz
– 0.15
0.15
Gain relative to gain at 1.02 kHz
Input signal at PCM IN is 0 dBm0
f = 3.3 kHz
– 0.35
0.15
dB
f = 3.4 kHz
–1
– 0.1
f = 4 kHz
–14
f
w 4.6 kHz
–30
timing requirements
clock timing requirements over recommended ranges of supply voltage and operating free-air temperature
(see Figures 3 and 4)
MIN
TYP†
MAX
UNIT
tc(CLK)
Clock period for CLKX, CLKR (2.048-MHz systems)
488
ns
tr, tf
Rise and fall times for CLKX and CLKR
5
30
ns
tw(CLK)
Pulse duration for CLKX and CLKR (see Note 7)
220
ns
tw(DCLK)
Pulse duration, DCLK (fDCLK = 64 kHz to 2.048 MHz) (see Note 7)
220
ns
Clock duty cycle, [tw(CLK)/tc(CLK)] for CLKX and CLKR
45%
50%
55%
† All typical values are at VBB = –5 V, VCC = 5 V, and TA = 25°C.
NOTE 7: FSX CLK must be phase locked with CLKX. FSR CLK must be phase locked with CLKR.
transmit timing requirements over recommended ranges of supply voltage and operating free-air
temperature, fixed-data-rate mode (see Figure 3)
MIN
MAX
UNIT
td(FSX)
Frame-sync delay time
100
tc(CLK) – 100
ns
tsu(SIGX)
Setup time before bit 7 falling edge of CLKX (TMC29C14 and TCM129C14 only)
0
ns
th(SIGX)
Hold time after bit 8 falling edge of CLKX (TCM29C13 and TCM129C14 only)
0
ns
receive timing requirements over recommended ranges of supply voltages and operating free-air
temperature, fixed-data-rate mode (see Figure 4)
PARAMETER
MIN
MAX
UNIT
td(FSR)
Frame-sync delay time
100
tc(CLK)–100
ns
tsu(PCM IN)
Setup time before bit 1 falling edge (TCM129C14 and TCM29C14 only)
10
ns
th(PCM IN)
Hold time after bit 1 falling edge (TCM129C14 and TCM29C14 only)
60
ns
transmit timing requirements over recommended ranges of supply voltage and operating free-air
temperature, fixed-data-rate mode (see Figure 5)
PARAMETER
MIN
MAX
UNIT
td(TSDX)
Time-slot delay time from DCLKX (see Note 8)
140
td(DCLKX)–140
ns
td(FSX)
Frame-sync delay time
100
tc(CLK)–100
ns
tc(DCLKX)
Clock period for DCLKX
488
15620
ns
NOTE 8: tFSLX minimum requirement overrides the td(TSDX) maximum requirement for 64-kHz operation.


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