參數(shù)資料
型號(hào)： AD7724
廠商： Analog Devices, Inc.
英文描述： Dual CMOS Modulators
中文描述： 調(diào)制器雙通道CMOS
文件頁數(shù)： 3/14頁
文件大?。?/td> 552K
代理商： AD7724
REV. A
–3–
AD7724
Parameter
A Version
Unit
Test Conditions/Comments
LOGIC OUTPUTS
V
OH
, Output High Voltage
V
OL
, Output Low Voltage
DVDD1 – 0.2
0.4
V min
V max
|I
OUT
|
≤
200
μ
A
|I
OUT
|
≤
1.6 mA
POWER SUPPLIES
AVDD/DVDD
DVDD1
I
DD
(Total for AVDD, DVDD)
Active Mode
Standby Mode
4.75/5.25
2.85/5.25
V min/V max
V min/V max
Digital Inputs Equal to 0V or DVDD
60
20
mA max
μ
A max
NOTES
1
Operating temperature range is as follows:A Version: –40
°
C to +85
°
C.
2
Gain Error excludes reference error. The modulator gain is calibrated wrt the voltage on the REF2 pin.
3
Measurement Bandwidth = 0.5
×
f
; Input Level = –0.05 dB.
4
When a square wave clock is used, the dynamic specifications will degrade by 1 dB typically.
Specifications subject to change without notice.
BIT STREAM
94.25kHz
FILTER 1
120dB
304.687kHz
BANDWIDTH = 94.25kHz
TRANSITION = 304.687kHz
ATTENUATION = 120dB
COEFFICIENTS = 384
DECIMATE
BY 32
FILTER 2
16-BIT
OUTPUT
94.25kHz
90dB
108.874kHz
BANDWIDTH = 94.25kHz
TRANSITION = 108.874kHz
ATTENUATION = 90dB
COEFFICIENTS = 151
DECIMATE
BY 2
Figure 1. Digital Filter (Consists of Two FIR Filters). This Filter is implemented on the AD7722.
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