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参数资料
| 型号： | EM4095HMSO16A |
| 元件分类： | 线性稳压 |
| 英文描述： | Single 12V Input Supply Dual Regulator - Synchronous Rectified Buck PWM and Linear Power Controller; Temperature Range: 0°C to 70°C; Package: 14-SOIC |
| 中文描述： | 电信提供商/数据通信 |
| 文件页数： | 6/10页 |
| 文件大小： | 204K |
| 代理商： | EM4095HMSO16A |
EM4095
Copyright
2002, EM Microelectronic-Marin SA
5
www.emmicroelectronic.com
Timing Characteristics:
Parameters specified below are valid only in case the device is used according to Operating Conditions defined on previous
page.
VSS=DVSS=0V, VDD=DVDD = 5V
Parameter
Symbol
Test Conditions
Typ
Max
Units
Set-up time after a sleep period
Tset
25
35
ms
Time from full power to modulation
state
Tmdon
antenna circuit specifications:
Q=15,FRES=125Khz
modulation index: 100%
50
s
AM demodulation: Delay time from
input to output
Tpd
Modulating signal 2Khz square
wave 10mVpp
40
100
s
Recovery time of reception after
antenna modulation
Trec
Note 1
400
500
s
Note 1: RF period is time of one period transmitted on ANT outputs (at 125 kHz 8s). Trec after antenna modulation
receiver chain is ready to demodulate. The condition is of course that the amplitude on antenna has already reached its
steady state by that time (this depends on Q of antenna). See also Application Notes.
Block Diagram
VDD
SHD
AGND
VSS
to all blocks
LOOP
FILTER
VCO &
SEQUENCER
BIAS &
AGND
SHORT
DETECTION
& READY
BIAS & AGND
to all blocks
ANTENNA
DRIVERS
SYNCHRO
SAMPLER
FILTER
COMPARATOR
to all blocks
CDEC_OUT
CDEC_IN DC2
FCAP
MOD
DMOD_IN
RDY/CLK
DVDD
ANT1
ANT2
DVSS
DMOD_OUT
HOLD
LOCK
Fig. 5
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