參數(shù)資料
型號: AD9856AST
廠商: ANALOG DEVICES INC
元件分類: 通信及網(wǎng)絡
英文描述: CMOS 200 MHz Quadrature Digital Upconverter
中文描述: SPECIALTY TELECOM CIRCUIT, PQFP48
封裝: LQFP-48
文件頁數(shù): 2/32頁
文件大小: 429K
代理商: AD9856AST
–2–
REV. B
AD9856–SPECIFICATIONS
(V
S
= +3 V
6
5%, R
SET
= 3.9 k
V
, External reference clock frequency = 10 MHz
with REFCLK Multiplier enabled at 20
3
).
Test
Level
AD9856
Min
Parameter
Temp
Typ
Max
Units
REF CLOCK INPUT CHARACTERISTICS
Frequency Range
REFCLK Multiplier Disabled
REFCLK Multiplier Enabled at 4
×
REFCLK Multiplier Enabled at 20
×
Duty Cycle
Input Capacitance
Input Impedance
Full
Full
Full
+25
°
C
+25
°
C
+25
°
C
VI
VI
VI
V
V
V
5
5
5
200
1
50
10
MHz
MHz
MHz
%
pF
M
50
3
100
DAC OUTPUT CHARACTERISTICS
Resolution
Full-Scale Output Current
Gain Error
Output Offset
Differential Nonlinearity
Integral Nonlinearity
Output Capacitance
Phase Noise @ 1 kHz Offset, 40 MHz A
OUT
REFCLK Multiplier Enabled at 20
×
REFCLK Multiplier at 4
×
REFCLK Multiplier Disabled
Voltage Compliance Range
Wideband SFDR:
1 MHz Analog Out
20 MHz Analog Out
42 MHz Analog Out
65 MHz Analog Out
80 MHz Analog Out
Narrowband SFDR: (
±
100 kHz Window)
70 MHz Analog Out
12
10
Bits
mA
%FS
μ
A
LSB
LSB
pF
5
–10
20
+10
10
+25
°
C
+25
°
C
+25
°
C
+25
°
C
+25
°
C
I
I
V
V
V
0.5
1
5
+25
°
C
+25
°
C
+25
°
C
+25
°
C
V
V
V
I
–85
–100
–110
dBc/Hz
dBc/Hz
dBc/Hz
V
–0.5
1.5
+25
°
C
+25
°
C
+25
°
C
+25
°
C
+25
°
C
IV
IV
IV
IV
IV
70
65
60
55
50
dBc
dBc
dBc
dBc
dBc
+25
°
C
IV
80
dBc
MODULATOR CHARACTERISTICS
Adjacent Channel Power (CH Power = –6.98 dBm)
Error Vector Magnitude
I/Q Offset
Inband Spurious Emissions
Pass Band Amplitude Ripple (DC to 80 MHz)
+25
°
C
+25
°
C
+25
°
C
+25
°
C
+25
°
C
IV
IV
IV
IV
V
50
dBm
%
dB
dBc
dB
1
55
50
±
0.3
2
50
45
TIMING CHARACTERISTICS
Serial Control Bus
Maximum Frequency
Minimum Clock Pulsewidth High (t
PWH
)
Minimum Clock Pulsewidth Low (t
PWL
)
Maximum Clock Rise/Fall Time
Minimum Data Setup Time (t
DS
)
Minimum Data Hold Time (t
DH
)
Maximum Data Valid Time (t
DV
)
Wake-Up Time
2
Minimum RESET Pulsewidth High (t
RH
)
Full
Full
Full
Full
Full
Full
Full
Full
Full
IV
IV
IV
IV
IV
IV
IV
IV
IV
10
MHz
ns
ns
ms
ns
ns
ns
ms
REFCLK
Cycles
30
30
1
25
0
30
1
5
CMOS LOGIC INPUTS
Logic “1” Voltage
Logic “0” Voltage
Logic “1” Current
Logic “0” Current
Input Capacitance
+25
°
C
+25
°
C
+25
°
C
+25
°
C
+25
°
C
I
I
I
I
V
+2.6
V
V
μ
A
μ
A
pF
+0.4
12
12
3
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