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参数资料
| 型号： | MC14LC5480ENR2 |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 9/24页 |
| 文件大小： | 0K |
| 描述： | IC CODEC-FILTER PCM 5V 20-SSOP |
| 标准包装： | 1,500 |
| 类型： | PCM 编解码器/滤波器 |
| 数据接口： | PCM 音频接口 |
| 分辨率（位）： | 13 b |
| ADC / DAC 数量： | 1 / 1 |
| 三角积分调变： | 无 |
| 电压 - 电源，数字： | 4.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 20-SSOP |
| 包装： | 带卷 (TR) |
DIGITAL SWITCHING CHARACTERISTICS FOR GCI MODE
(VDD = 5.0 V ± 5%, 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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