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| 型號： | TCM38C17IDL |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | QComboE FOUR-CHANNEL QUAD PCM COMBO |
| 中文描述： | QComboE四通道的Quad的PCM組合 |
| 文件頁數(shù)： | 9/22頁 |
| 文件大小： | 314K |
| 代理商： | TCM38C17IDL |
TCM38C17IDL
QCombo
FOUR-CHANNEL (QUAD) PCMCOMBO
SLWS040C – JUNE 1996 – REVISED OCTOBER 1999
9
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
timing requirements over recommended ranges of supply voltage and operating free-air temperature,
fixed-data-rate mode (see Figures 3 and 4)
MIN
MAX
UNIT
tsu(FS)
tsu(PCMIN)
th(PCMIN)
th(RESET)
th(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)
100
tc (MCLK) –100
ns
10
ns
60
ns
100
ns
10
tc(MCLK)
×
7
ns
td(FS–FS)
tc(MCLK)
×
64
μ
s
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)
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.
absolute and relative delay times over recommended ranges of supply voltage and operating free-air
temperature
CL = 0 to 100 pF
0
145
ns
tpd3
CL = 0 pF
60
215
ns
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
μ
s
f = 500 Hz – 600 Hz
170
Transmit differential envelope delay
relative to transmit absolute delay time
f = 600 Hz – 1000 Hz
95
μ
s
f = 1000 Hz – 2600 Hz
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
μ
s
f = 500 Hz – 600 Hz
45
Receive differential envelope delay time
relative to transmit absolute delay time
f = 600 Hz – 1000 Hz
35
μ
s
f = 1000 Hz – 2600 Hz
85
f = 2600 Hz – 2800 Hz
110
All typical values are at VDD = 5 V, and TA = 25
°
C.
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