參數(shù)資料
型號(hào): MC145484SDR2
廠商: Freescale Semiconductor
文件頁(yè)數(shù): 10/28頁(yè)
文件大?。?/td> 0K
描述: IC 5V PCM CODEC-FILTER 20-SSOP
標(biāo)準(zhǔn)包裝: 1
類型: PCM 編解碼器/濾波器
數(shù)據(jù)接口: PCM 音頻接口
分辨率(位): 13 b
ADC / DAC 數(shù)量: 1 / 1
三角積分調(diào)變: 無(wú)
電壓 - 電源,數(shù)字: 4.5 V ~ 5.5 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 20-SSOP(0.209",5.30mm 寬)
供應(yīng)商設(shè)備封裝: 20-SSOP
包裝: 剪切帶 (CT)
其它名稱: MC145484SDCT
MC145484
MOTOROLA
18
DIGITAL SWITCHING CHARACTERISTICS FOR GCI MODE
(VDD = 5.0 V ± 10%, TA = – 40 to + 85°C, CL = 150 pF, See Figure 6 and Note 1)
Ref.
No.
Characteristics
Min
Max
Unit
42
Time Between Successive FSC Pulses
Note 2
43
DCL Clock Frequency
512
6176
kHz
44
DCL Clock Pulse Width High
50
ns
45
DCL Clock Pulse Width Low
50
ns
46
Hold Time of FSC After Falling Edge of DCL
20
ns
47
Setup Time of FSC to DCL Falling Edge
60
ns
48
Rising Edge of DCL (After Rising Edge of FSC) to Low Impedance and Valid Data of Dout
60
ns
49
Rising Edge of FSC (While DCL is High) to Low Impedance and Valid Data of Dout
60
ns
50
Rising Edge of DCL to Valid Data on Dout
60
ns
51
Second DCL Falling Edge During LSB to High Impedance of Dout
10
50
ns
52
Setup Time of Din Before Rising Edge of DCL
20
ns
53
Hold Time of Din After DCL Rising Edge
60
ns
NOTES:
1. Measurements are made from the point at which the logic signal achieves the guaranteed minimum or maximum logic level.
2. In GCI mode, both transmit and receive 8–bit PCM words are accessed during the B1 channel, or both transmit and receive 8–bit PCM words
are accessed during the B2 channel as shown in Figure 6. GCI accesses must occur at a rate of 8 kHz (125
s interval).
31
FSC
(FST)
12
11
10
9
Din (DR)
CH1
MSB
CH1
MSB
Dout (DT)
DCL
(BCLKT)
5
4
3
2
1
34
33
32
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15 16
14
13
8
7
6
5
4
3
2
LSB
ST3
ST2
ST1
CH3
CH2
CH1
MSB
LSB
ST3
ST2
ST1
CH3
CH2
CH1
MSB
LSB
ST3
ST2
ST1
CH3
CH2
CH1
MSB
LSB
ST3
ST2
ST1
CH3
CH2
CH1
Din (DR)
Dout (DT)
DCL
(BCLKT)
FSC
(FST)
46
47
44
43
45
49
48
52
53
52
53
52
53
MSB
49
50
51
48
50
51
42
Figure 6. GCI Interface Timing
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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