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參數(shù)資料
| 型號(hào)： | AMIS-52100-M |
| 英文描述： | Transceiver with Clock and Data Recovery |
| 中文描述： | 收發(fā)器時(shí)鐘和數(shù)據(jù)恢復(fù) |
| 文件頁數(shù)： | 10/26頁 |
| 文件大?。?/td> | 1040K |
| 代理商： | AMIS-52100-M |
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AMIS-52100
Low-Power Transceiver with Clock and Data Recovery
Data Sheet
Table 15: Internal I
2
C Pull-up Resistors
Pin
Function
I
CDATA
Internal Pull-up R
I
2
CCLK
Internal Pull-up R
Table 16: I
2
C Bus Device Addressing
Device
Address (Bin)
AMIS-52100
01101000
AMIS-52100
01101001
Table 17: I
2
C Control Register
I
C Control Register
Register (HEX)
0x0c
Typ.
15
15
Units
K
K
HEX
68
69
Function
Device write
Device read
Name
I
C address
increment
Bits
2
States
0
1
Comments
Increment after write
Do not increment
The I
2
CDATA and I
2
CCLK lines are also used to signal an external controller about internal AMIS-52100 activities such as wakeup. The
receiver can be woken by energy detection during a Sniff operation. The AMIS-52100 can set the application wakeup timer to wake it
from time to time to alert an external controller to perform tasks as defined by the application. The I
CDATA and I
CCLK lines are used
to inform the external controller as to what event woke the AMIS-52100. These functions, Sniff Mode and application wakeup, are
discussed later in this document.
8.10 TX/RX, Data Input/Output
The transmit/receive (TX/RX) pin function can be programmed to be an input for RF transmissions, an output for RF reception, the RC
oscillator signal output, or the recovered data output from the CDR circuits.
In transmit mode, this pin is the digital data input to the AMIS-52100 RF transmit circuit. The data turns the transmit output power
amplifier (PA) on or off. The AMIS-52100 does not perform any protocol conversion on the data bit stream, it is simply a serial bit
stream. The state of the TX/RX pin either turns the output amplifier on, outputting RF signal. Or turns the output amplifier off, no RF
signal output. The TX/RX input can be inverted which causes the state control of the RF output amplifier to be inverted also.
In receive mode, this pin is the digital data output from the AMIS-52100 receivers. The received data is recovered as a high/low (digital
ones and zeros) serial bit stream, the AMIS-52100 does not modify the received data protocol. The receiver is just a pass through
function. The data output state due to the presence of energy in the receiver can be programmed to be either a high level or a low level
at the TX/RX pin. An external controller is needed to decode the information in the recovered data bit stream.
When programmed to be an oscillator output, the TX/RX pin outputs the signal from the RC oscillator. This signal can be used to
monitor the frequency of the RC oscillator to trim the frequency to the desired value.
The TX/RX pin can be programmed to output the recovered data obtained from the clock and data recovery circuits. The AMIS-52100
must be programmed into the CDR mode for this. More information on CDR is found in a later section on CDR.
The functions of the TX/RX port are controlled by writing to the registers shown in Table 18 of the AMIS-52100.
Table 18: TX/RX Pin Definition Control Registers
Register (HEX)
Name
Bits
States
Comments
0
RX/TX normal
0x0e
RC OSC on TX/RX
2
1
RC OSC output
0
Normal levels
0x1e
TX/RX invert
5
1
Inverted
10
AMI Semiconductor
– Rev 4.0, Mar. 06 – M-20535-004
www.amis.com
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| AMIS53000/19608-001XT | 制造商:AMI Semiconductor 功能描述: 制造商:NTE Electronics 功能描述: |
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