參數(shù)資料
型號： AD9975ABSTRL
廠商： ANALOG DEVICES INC
元件分類： 調(diào)制器/解調(diào)器
英文描述： Broadband Modem Mixed-Signal Front End
中文描述： MODEM-SUPPORT CIRCUIT, PQFP48
封裝： 1.40 MM HEIGHT, PLASTIC, MS-026BBC, LQFP-48
文件頁數(shù)： 4/20頁
文件大?。?/td> 1392K
代理商： AD9975ABSTRL
REV. 0
–4–
AD9975
SPECIFICATIONS
(continued)
Test
Level
Parameter
Temp
Min
Typ
Max
Unit
SERIAL CONTROL BUS
Maximum SCLK Frequency (f
SCLK
)
Clock Pulsewidth High (t
PWH
)
Clock Pulsewidth Low (t
PWL
)
Clock Rise/Fall Time
Data/Chip-Select Setup Time (t
DS
)
Data Hold Time (t
DH
)
Data Valid Time (t
DV
)
CMOS LOGIC INPUTS
Logic “1” Voltage
Logic “0” Voltage
Logic “1” Current
Logic “0” Current
Input Capacitance
Full
Full
Full
Full
Full
Full
Full
II
II
II
II
II
II
II
25
18
18
MHz
ns
ns
μ
s
ns
ns
ns
10
25
0
20
25
°
C
25
°
C
25
°
C
25
°
C
25
°
C
II
II
II
II
III
V
DRVDD
– 0.7
V
V
μ
A
μ
A
pF
0.4
12
12
3
CMOS LOGIC OUTPUTS (1 mA Load)
Logic “1” Voltage
Logic “0” Voltage
Digital Output Rise/Fall Time
Full
25
°
C
Full
II
II
II
V
DRVDD
– 0.6
V
V
ns
0.4
2.5
1.5
POWER SUPPLY
All Blocks Powered Up
I
S_TOTAL
(Total Supply Current)
Digital Supply Current (I
DRVDD
+ I
DVDD
)
Clock Supply Current (I
CLKVDD
)
Analog Supply Current (I
AVDD
)
Power Consumption of Functional Blocks
Rx LPF
ADC and SPGA
Rx Reference
Interpolator
DAC
PLL-A
All Blocks Powered Down
I
S_TOTAL
(Total Supply Current)
Digital Supply Current (I
DRVDD
+ I
DVDD
)
Clock Supply Current (I
CLKVDD
)
Analog Supply Current (I
AVDD
)
25
°
C
25
°
C
25
°
C
25
°
C
I
III
III
III
210
22.5
5.5
182
227
mA
mA
mA
mA
25
°
C
25
°
C
25
°
C
25
°
C
25
°
C
25
°
C
III
III
III
III
III
III
110
55
2
20
18
22
mA
mA
mA
mA
mA
25
°
C
25
°
C
25
°
C
25
°
C
I
III
III
III
21
10
0
11
27
mA
mA
mA
mA
Specifications subject to change without notice.
ABSOLUTE MAXIMUM RATINGS
*
Power Supply (V
S
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.9 V
Digital Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . 5 mA
Digital Inputs . . . . . . . . . . . . . . . . –0.3 V to DRVDD + 0.3 V
Analog Inputs . . . . . . . . . . . . . . . . . –0.3 V to AVDD + 0.3 V
Operating Temperature . . . . . . . . . . . . . . . . . .–40
°
C to +85
°
C
Maximum Junction Temperature . . . . . . . . . . . . . . . . . 150
°
C
Storage Temperature . . . . . . . . . . . . . . . . . . –65
°
C to +150
°
C
Lead Temperature (Soldering 10 sec) . . . . . . . . . . . . . . 300
°
C
*
Absolute Maximum Ratings are limiting values to be applied individually and
beyond which the serviceability of the circuit may be impaired. Functional
operability under any of these conditions is not necessarily implied. Exposure to
absolute maximum rating conditions for extended periods of time may affect
device reliability.
EXPLANATION OF TEST LEVELS
I.
Devices are 100% production tested at 25
°
C and guaranteed
by design and characterization testing for the commercial
operating temperature range (–40
°
C to +85
°
C).
II. Parameter is guaranteed by design and/or characterization
testing.
III. Parameter is a typical value only.
THERMAL CHARACTERISTICS
Thermal Resistance
48-Lead LQFP
θ
JA
= 57oC/W
θ
JC
= 28oC/W
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