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参数资料
| 型号： | CS6403-IL |
| 厂商： | CIRRUS LOGIC INC |
| 元件分类： | 编解码器 |
| 英文描述： | Echo-Cancelling Codec |
| 中文描述： | A/MU-LAW, PCM CODEC, PQCC44 |
| 封装： | PLASTIC, LCC-44 |
| 文件页数： | 12/54页 |
| 文件大小： | 761K |
| 代理商： | CS6403-IL |
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Mode Selection
The behavior of the CS6403 is controlled by
configuration-control input pins. The behavior of
the CS6403 for each possible state of these con-
trol signals is illustrated in Table 2.
As indicated in Table 2, the CS6403 has two ba-
sic operating modes. These operating modes are
illustrated in Figure 4.
The simplest operating mode is Mode 1. This
operating mode is useful in applications where
the data link to the far end is analog, as in ana-
log cellular hands free, or in analog speaker
phones. The SSI is the system timing master in
Mode 1. Long or short framing signals can be
generated. Word length is always 8 bits.
Mode 2 is useful in applications where the data
link to the far end is digital, as in digital cellular
hands free, or in digital (ISDN) speaker phones.
The SSI is the system timing slave in Mode 2.
Only short framing pulses are accepted. Word
length can be 8 or 16 bits. Mode 2 allows ac-
cess to control registers in 16-bit Mode.
States of Operation
Reset
Reset may be asserted either by setting the RE-
SET (PIN 41Q, 3L) pin high, or by setting the
Reset bit in Synchronous Serial Interface Control
Register 0 (RST: SSI_CR0.11). The only func-
tional difference between these two operations is
that setting the RESET pin clears the RST bit.
During Reset, all chip functions are halted ex-
Configuration
S
S
C
Mode 1:
Application:
Master Interface (e.g. CODEC
CS6403)
Low-cost speaker phone
Short-Frame Mode
Long-Frame Mode
1.1:
1.2:
0
1
1
1
0
0
Mode 2:
Application:
Slave Interface (e.g. DSP
CS6403)
Digital cellular
16-bit Mode
8-bit Mode
2.1:
2.2:
0
0
0
0
1
0
Table 2. CS6403 Configurations
Far End
Near End
Mode 2
Mode 1
DSP
Codec
CS6403
CS6403
Figure 4. Operating Modes
CS6403
12
DS192PP6
相关PDF资料 |
PDF描述 |
|---|---|
| CS6403-IQ | Echo-Cancelling Codec |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CS6403-IQ | 制造商:CIRRUS 制造商全称:Cirrus Logic 功能描述:Echo-Cancelling Codec |
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