参数资料
型号: MAX19700
厂商: Maxim Integrated Products, Inc.
英文描述: 10-Bit, 45Msps, Ultra-Low-Power Analog Front-End
中文描述: 7.5Msps、超低功耗模拟前端
文件页数: 7/37页
文件大小: 561K
代理商: MAX19700
M
10-Bit, 45Msps, Ultra-Low-Power
Analog Front-End
_______________________________________________________________________________________
7
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= 3V, OV
DD
= 1.8V, internal reference (1.024V), C
L
10pF on all digital outputs, f
CLK
= 45MHz (50% duty cycle), Rx ADC input
amplitude = -0.5dBFS, Tx DAC output amplitude = 0dBFS, differential Rx ADC input, differential Tx DAC output, C
REFP
= C
REFN
=
C
COM
= 0.33μF, unless otherwise noted. C
L
< 5pF on all aux-DAC outputs. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Q-DAC DATA to CLK Rise Setup
Time
t
DSQ
Figure 5 (Note 6)
9
ns
CLK Fall to I-DAC Data Hold Time
t
DHI
Figure 5 (Note 6)
-4
ns
CLK Rise to Q-DAC Data Hold
Time
t
DHQ
Figure 5 (Note 6)
-4
ns
CLK Duty Cycle
CLK Duty-Cycle Variation
Digital Output Rise/Fall Time
SERIAL-INTERFACE TIMING CHARACTERISTICS (Figure 6, Note 6)
50
±15
2.6
%
%
ns
20% to 80%
Falling Edge of
CS
to Rising Edge
of First SCLK Time
t
CSS
10
ns
DIN to SCLK Setup Time
DIN to SCLK Hold Time
SCLK Pulse-Width High
SCLK Pulse-Width Low
SCLK Period
SCLK to
CS
Setup Time
CS
High Pulse Width
CS
High to DOUT Active High
t
DS
t
DH
t
CH
t
CL
t
CP
t
CS
t
CSW
t
CSD
10
0
25
25
50
10
80
ns
ns
ns
ns
ns
ns
ns
ns
Bit AD0 set
200
CS
High to DOUT Low (Aux-ADC
Conversion Time)
t
CONV
Bit AD0 set, no averaging (see Table 14),
f
CLK
= 45MHz,
CLK divider = 16 (see Table 15)
4.27
μs
DOUT Low to
CS
Setup Time
SCLK Low to DOUT Data Out
CS
High to DOUT High Impedance
MODE-RECOVERY TIMING CHARACTERISTICS (Figure 7)
t
DCS
t
CD
t
CHZ
Bit AD0, AD10 set
Bit AD0, AD10 set
Bit AD0, AD10 set
200
ns
ns
ns
14.5
200
From shutdown to Rx mode, ADC settles
to within 1dB SINAD
85.2
Shutdown Wake-Up Time
t
WAKE,SD
From shutdown to Tx mode, DAC settles to
within 10 LSB error
28.2
μs
Fr om i d e to Rx m od e w h C LK p esent
d ur ng i d e, AD C settl es to w hi n 1d B S N AD
9.8
Idle Wake-Up Time (With CLK)
t
WAKE,ST0
From idle to Tx mode with CLK present
during idle, DAC settles to 10 LSB error
6.4
μs
From standby to Rx mode, ADC settles to
within 1dB SINAD
13.7
Standby Wake-Up Time
t
WAKE,ST1
From standby to Tx mode, DAC settles to
10 LSB error
24
μs
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