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参数资料
| 型号： | PMB2349 |
| 厂商： | INFINEON TECHNOLOGIES AG |
| 元件分类： | PLL合成/DDS/VCOs |
| 英文描述： | PLL FREQUENCY SYNTHESIZER, 2800 MHz, PQCC24 |
| 封装： | PLASTIC, VQFN-24 |
| 文件页数： | 3/35页 |
| 文件大小： | 670K |
| 代理商： | PMB2349 |
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Functional Description
3 - 4
PMB 2349
preliminary
Wireless Components
Confidential
Specification, May 2000
Table 3-1 Pin Definition and Function (continued)
Pin No.
Symbol
Equivalent I/O-Schematic
Function
7
EN
3-Wire bus input:
Enable
Enable input of the serial
control interface with
Schmitt-Trigger input
stage. When EN=H the
input signals CLK and DA
are disabled. When EN=L
the serial control interface
is enabled. The received
data are transferred to the
registers with the positive
edge of the EN-signal.
8
DA
3-Wire bus input: Data
Data input of the serial
control interface with
Schmitt-Trigger input
stage.The serial data are
read into the internal shift
register with the positive
edge of CLK.
10
CLK
3-Wire bus input: Clock
Clock input of the serial
control interface with
Schmitt-Trigger input
stage
11
MFO
Lock detector output
Unipolar output of the
phase detector in the
form of a pulse-width
modulated signal. In the
locked state the output
signal is at H-level. In
standby mode the output
is resistive.
For test purpose the push
pull output fo is enabled.
ESD
*2pF
560
75k
S e rial C ontro l Input E quiva lent
CL K
8
ESD
*2pF
560
75k
S e rial C ontro l Input E quiva lent
DA
9
ESD
*2pF
560
75k
S e rial C ontro l Input E quiva lent
EN
10
ESD
*2pF
L D /fo
LD as Lock D e te ctor
11
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