Cirrus Logic CS4373A User Manual
CS4373A
Low-power, High-performance
Features
z Digital ∆Σ Input from CS5376A Digital Filter
z Selectable Differential Analog Outputs
• Precision output (OUT±) for electronics tests
• Buffered output (
z Multiple AC and DC Operational Modes
• Signal bandwidth: DC to 100 Hz
• Max AC amplitude: 5 V
• Max DC amplitude: + 2.5 V
z Selectable Attenuation for CS3301A / CS3302A
• 1, 1/2, 1/4, 1/8, 1/16, 1/32, 1/64
z Outstanding Performance
• AC (OUT): -116 dB THD typical, -112 dB max
• AC (BUF): -108 dB THD typical, -90 dB max
• DC absolute accuracy: 0.4% typical, 1% max
z Low Power Consumption
• AC modes / DC modes: 40 mW / 20 mW
• Sleep mode / Power Down: 1 mW / 10 µW
z Extremely Small Footprint
• 28-pin SSOP package, 8 mm x 10 mm
z Bipolar Power Supply Configuration
• VA+ = +2.5 V;VA- = -2.5 V;VD = +3.3 V
BUF±) for sensor tests
differential
PP
differential
dc
∆Σ
Test DAC
Description
The CS4373A is a high-performance, differential output
digital-to-analog converter (DAC) with programmab le attenuation and multiple operational modes. AC test
modes measure system dynamic performance through
THD and CMRR tests while DC test modes are for gain
calibration and pulse tests.
The CS4373A is driven by a ∆Σ digital bit stream from the
CS5376A digital filter test bit stream (TBS) generator. It
has two sets of differential analog outputs, OUT and
BUF, to simplify system design as dedicated outputs for
testing the electronics channel and for in-circuit sensor
tests. Analog output attenuation is selected by simple pin
settings and matches the gain of the
CS3301A / CS3302A differential amplifiers for full-scale
testing at all gain ranges.
The CS4373A test DAC provides self-test and precision
calibration capability for high-resolution, low-frequency
multi-channel measurement systems designed from
CS3301A / CS3302A differential amplifiers,
CS5371A / CS5372A ∆Σ m odulators and the CS5376A
digital filter.
ORDERING INFORMATION
See page 34.
http://www.cirrus.com
TDATA
VREF+
VREF-
VA+ MODE(0, 1, 2) ATT(0, 1, 2) VD
Attenuator
24-Bit ∆Σ
DAC
Clock
Generator
VA-
CAP+ CAP-
Copyright © Cirrus Logic, Inc. 2006
(All Rights Reserved)
GND
OUT+
OUTBUF+
BUF-
MCLK
MSYNC
DEC ‘06
DS699F2
CS4373A
TABLE OF CONTENTS
1. CHARACTERISTICS AND SPECIFICATIONS ........................................................................ 4
2. GENERAL DESCRIPTION .....................................................................................................16
2.1 Digital Inputs .............................. ... ... ....................................... ... ... ... .... ............................16
2.2 Analog Outputs ............................. ... ... ... ....................................... ... .... ... ... ... ...................16
2.3 Multiple Operational Modes ............................................................................................. 16
2.4 Low Power ............................. .... ... ... ....................................... ... ... ... .... ............................16
3. SYSTEM DIAGRAMS ..........................................................................................................17
4. POWER MODES ..................................................................................................................... 18
4.1 Power Down .....................................................................................................................18
4.2 Sleep Modes ................. ... ... ... .... ... ... ....................................... ... ... ... .... ... ... ... ...................18
4.3 AC Test Modes ................................ ... ... ....................................... ... .... ... ... ... ...................18
4.4 DC Test Modes ......... .... ... ....................................... ... ... ... .... ... ......................................... 18
5. OPERATIONAL MODES ........................................................................................................19
5.1 Sleep Modes ................. ... ... ... .... ... ... ....................................... ... ... ... .... ... ... ... ...................19
5.2 AC Test Modes ................................ ... ... ....................................... ... .... ... ... ... ...................19
5.2.1 AC Differential ............................................ ...................................... .... ... ... ... ......19
5.2.2 AC Common Mode ..............................................................................................20
5.2.3 AC Stability .................... ...................................... .... ... ... ... ................................... 20
5.3 DC Test Modes ......... .... ... ....................................... ... ... ... .... ... ......................................... 20
5.3.1 DC Common Mode .............................................................................................20
5.3.2 DC Differential ........................... ....................................... ... .... ... ... ......................20
6. DIGITAL INPUTS ....................................................................................................................22
6.1 TDATA Connection ............. ... .... ... ... ... ....................................... ... ... .... ... ... ... .... ... ... ... ... ... 22
6.2 MCLK Connection .. ... .... ... ... ... .... ... ....................................... ... ... ... ... ................................22
6.3 MSYNC Connection ................................... ...................................... .... ... ... ... ...................22
6.4 GPIO Connections .... .... ... ....................................... ... ... ... .... ... ...................................... ...23
7. ANALOG OUTPUTS ............................................................................................................... 24
7.1 Differential Signals ........... ... ... .... ... ... ... ... .... ...................................... .... ... ... ... .... ... ... ... ......24
7.2 Analog Output Attenuation ..... .... ... ... ... ... .... ... ....................................... ... ... ... .... ... ... ... ... ... 24
7.3 OUT± Precision Output ....................................................................................................25
7.4 BUF± Buffered Output ............................................................ ... ... ... .... ... ... ... .... ... ............25
7.5 CAP± Analog Output ........................................................................................................25
8. VOLTAGE REFERENCE ........................................................................................................26
8.1 VREF Power Supply .................................. ... ... ... .... ... ... ... ....................................... ... ... ... 26
8.2 VREF RC Filter ................................................................................................................26
8.3 VREF PCB Routing ..........................................................................................................26
8.4 VREF Input Impedance ....................................................................................................27
8.5 VREF Accuracy ................................... ... .... ... ... ....................................... ... ... .... ... ... ... ...... 27
8.6 VREF Independence ....................................... ... .... ... ... ... .... ... ... ...................................... 27
9. POWER SUPPLIES ................................................................................................................28
9.1 Power Supply Bypassing ........................... ... ... ... .... ... ... ... .... ... ...................................... ... 28
9.2 PCB Layers and Routing .... ... .... ... ... ... ....................................... ... ... .... ... ... ... .... ... ... ... ... ... 28
9.3 Power Supply Rejection ... ... ... .... ...................................... .... ... ... ... ... .... ... ... ... .... ... ... .........28
9.4 SCR Latch-up .. ... ... ....................................... ... ... .... ... ... ... .... ... ......................................... 29
9.5 DC-DC Converters ..........................................................................................................29
10. TERMINOLOGY .................... ... ... .... ... ... ... ... ....................................... ... .... ... ... ... .... ... ............30
11. PIN DESCRIPTION ...............................................................................................................31
12. PACKAGE DIMENSIONS ..................................................................................................... 33
13. ORDERING INFORMATION ................................................................................................ 34
14. ENVIRONMENTAL, MANUFACTURING, & HANDLING INFORMATION .............. ... ... ... ... 34
15. REVISION HISTORY ........................................................................................................... 34
2 DS699F2
CS4373A
LIST OF FIGURES
Figure 1. Digital Input Rise and Fall Times ................................................................................... 12
Figure 2. System Timing Diagram.................................................................................................14
Figure 3. MCLK / MSYNC Timing Detail....................................................................................... 14
Figure 4. CS4373A Block Diagram............................................................................................... 16
Figure 6. Connection Diagram...................................................................................................... 17
Figure 5. System Diagram ............................................................................................................ 17
Figure 7. Power Mode Diagram....................................................................................................18
Figure 8. AC Differential Modes.................................................................................................... 19
Figure 9. AC Common Mode ........................................................................................................20
Figure 10. DC Test Modes............................................................................................................ 21
Figure 11. Digital Inputs................................................................................................................ 22
Figure 12. Analog Outputs............................................................................................................ 24
Figure 13. Voltage Reference Circuit............................................................................................26
Figure 14. Power Supply Diagram................................................................................................ 28
LIST OF TABLES
Table 1. Selections for Operational Mode and Attenuation............................................................. 4
Table 2. Operational Modes.......................................................................................................... 19
Table 3. Output Attenuation Settings ............................................................................................24
DS699F2 3
CS4373A
1. CHARACTERISTICS AND SPECIFICATIONS
• Min / Max characteristics and specifications are guaranteed over the Specified Operating Conditions.
• Typical performance characteristics and specifications are measured at nominal supply voltages and T
• GND = 0 V. Single-ended voltages with respect to GND, differential voltages with respect to opposite half.
• Device is connected as shown in Figure 6 on page 17, unless otherwise noted.
SPECIFIED OPERATING CONDITIONS
Parameter Symbol Min Nom Max Unit
Bipolar Power Supplies
Positive Analog
Negative Analog (Note 1)
Positive Digital
Voltage Reference Input
{VREF+} - {VREF-} (Note 2, 3) VREF - 2.500 - V
VREF- (Note 4)VREF- - VA- - V
Thermal
Ambient Operating Temperature Industrial (-IS, -ISZ) T
± 2% VA+ 2.45 2.50 2.55 V
± 2% V A- -2.45 -2.50 -2.55 V
± 3% VD 3.20 3.30 3.40 V
A
-40 25 85 °C
= 25°C.
A
Notes: 1. VA- must always be the most-negative input voltage to avoid potential SCR latch-up conditions.
2. By design, a 2.500 V voltage reference input results in the best signal-to-noise performance.
3. Full-scale accuracy is directly proportional to the voltage reference absolute accuracy.
4. VREF inputs must satisfy: VA- <
Modes of Operation
Selection MODE[2:0] Mode Description
0 0 0 0 Sleep mode.
1 0 0 1 AC OUT and BUF outputs.
2 0 1 0 AC OUT only, BUF high-z.
3 0 11 AC BUF only, OUT high-z.
4 1 0 0 DC common mode output.
5 1 0 1 DC differential output.
6 11 0 AC common mode output.
7 11 1 Sleep mode.
VREF- < VREF+ < VA+.
Attenuation
Selection ATT[2:0] Attenuation dB
0 000 1/1 0dB
1 0 0 1 1/2 -6.02 dB
2 0 1 0 1/4 -12.04 dB
3 0 1 1 1/8 -18.06 dB
4 1 0 0 1/16 -24.08 dB
5 1 0 1 1/32 -30.10 dB
6 11 0 1/64 -36.12 dB
7 1 11 reserved reserved
Table 1. Selections for Operational Mode and Attenuation
4 DS699F2
CS4373A
TEMPERATURE CONDITIONS
Parameter Symbol Min Typ Max Unit
Ambient Operating Temperature T
Storage Temperature Range T
Allowable Junction Temperature T
Junction to Ambient Thermal Impedance (4-layer PCB) Θ
A
STG
JCT
JA
ABSOLUTE MAXIMUM RATINGS
Parameter Symbol Min Max Parameter
DC Power Supplies Positive Analog
Negative Analog
Digital
Analog Supply Differential (VA+) - (VA-) VA
Digital Supply Differential (VD) - (VA-) VD
Input Current, Power Supplies (Note 5)I
Input Current, Any Pin Except Supplies (Note 5)I
Output Current (Note 5)I
Power Dissipation PDN - 500 mW
Analog Input Voltages V
Digital Input Voltages V
VA+
VA-
VD
DIFF
DIFF
IN
IN
OUT
INA
IND
-40 - +85 ºC
-65 - 150 ºC
--125ºC
-
65
-0.5
-6.8
-0.5
6.8
0.5
6.8
-
ºC / W
V
V
V
-6.8V
-7.6V
- ±50 mA
- ±10 mA
- ±25 mA
(VA-) - 0.5 (VA+) + 0.5 V
-0.5 (VD) + 0.5 V
WARNING: Operation at or beyond these limits may result in permanent damage to the device.
Normal operation is not guaranteed at these extremes.
Notes: 5. Transient currents up to
±100 mA will not cause SCR latch-up.
DS699F2 5
CS4373A
ANALOG CHARACTERISTICS
Parameter Symbol Min Typ Max Unit
VREF Input
{VREF+} - {VREF-} (Note 2, 3) VREF - 2.500 - V
VREF- (Note 4)VREF- - VA- - V
VREF Input Current, AC modes VREF
VREF Input Current, DC modes VREF
VREF Input Noise (Note 6)VREF
IAC
IDC
IN
Analog OUT± Output
Analog External Load at OUT
± Load Resistance
(Note 7, 8) Load Capacitance
Differential Output Impedance 1/1
R
LOUT
C
LOUT
ZDIF
OUT
1/2
1/4
1/8
1/16
1/32
1/64
Single-ended Output Impedance 1/1
ZSE
OUT
1/2
1/4
1/8
1/16
1/32
1/64
High-Z Impedance (Note 8)HZ
Crosstalk to BUF
± High-Z Output (Note 8)
XT
OUT
OUT
Analog BUF± Output
Analog External Load at BUF
± Load Resistance
(Note 8) Load Capacitance
Differential Output Impedance 1/1 - 1/64 ZDIF
Single-ended Output Impedance 1/1 - 1/32
R
LBUF
C
LBUF
ZSE
BUF
BUF
(Note 9) (BUF-) 1/64
(Note 9) (BUF+) 1/64
High-Z Impedance (Note 8)HZ
Crosstalk to OUT
± High-Z Output (Note 8)
XT
BUF
BUF
-80- µA
-40- µA
--1µV
50
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1.4
10.1
7.9
5.1
3.3
2.3
1.7
0.7
7.4
9.0
9.4
9.5
9.5
9.4
-
50
-
-
-
-
-
-
-
-
-
-
-
-
-
-
rms
MΩ
pF
kΩ
kΩ
kΩ
kΩ
kΩ
kΩ
kΩ
kΩ
kΩ
kΩ
kΩ
kΩ
kΩ
kΩ
-3-MΩ
--120- dB
1
-
-
-
2
kΩ
nF
-6- Ω
-
-
-
3
3
50
-
Ω
-
-
-4.5- MΩ
--120- dB
Notes: 6. Maximum integrated noise over the measurement bandwidth for the voltage reference device attached
to the VREF
7. Load on the precision OUT
± inputs.
± outputs is normally from the CS3301A / CS3302A a mplifiers, wh ich have
1GΩ/1 TΩ typical input impedance and 18 pF typical input capacitance.
8. Guaranteed by design and/or characterization.
9. Single-ended output impedance at 1/64 is different for BUF+ and BUF- due to the output attenuator
architecture.
6 DS699F2
AC DIFFERENTIAL MODES 1, 2, 3
Parameter Symbol Min Typ Max Unit
AC Differential Characteristics
1/2
1/4
1/8
1/2
1/8
VAC
VAC
VAC
FS
BW
IMP
ABS
REL
TC
CM
CMTC
Full-scale Differential AC Output 1/1
1/16
1/32
1/64
Full-scale Bandwidth (Note 8) VAC
Impulse Amplitude (Note 8, 10)VAC
AC Differential Accuracy
Full-scale Accuracy 1/1
(Note 3, 11)
Relative Accuracy
(Note 12) 1/4
1/16
1/32
1/64
Full-scale Drift (Note 14)VAC
DC Common Mode Characteristics
Common Mode (Note 13) VAC
Common Mode Drift (Note 13, 14)VAC
CS4373A
-
-
-
-
-
-
-
5
2.5
1.25
625
312.5
156.25
78.125
-
-
-
-
-
-
-
--100Hz
---20dBfs
- 0.5 - 0.2 0.2 %FS
- 0.2
-
-
-
-
-
± 0.1
± 0.1
± 0.1
- 0.1 ± 0.2
- 0.2 ± 0.3
- 0.5 ± 0.5
0.2
-
-
-
-
-
-25-µV/°C
- (VA-)+2.35 -V
-300- µV/°C
V
V
V
mV
mV
mV
mV
pp
pp
pp
pp
pp
pp
pp
%
%
%
%
%
%
Notes: 10. Maximum amplitude for operation above 100 Hz. A reduced amplitude for h igher frequencies is required
to guarantee stability of the low-power delta-sigma architecture.
11. Full-scale accuracy compares the defined full-scale 1/1 amplitude to the measured 1/1 amplitude.
Specification is for unloaded outputs. Applying a differential load lowers the output amplitude ratiometric
to the differential output impedance.
12. Relative accuracy compares the measured 1/2,1/4,1/8,1/16,1/3 2, 1/ 64 amp litu d e to th e me a su re d 1/1
amplitude.
13. Common mode voltage is defined as [(SIG+) + (SIG-)] / 2.
14. Specification is for the parameter over the specified temperature range and is for the device only. It does
not include the effects of external comp o nents.
DS699F2 7
AC DIFFERENTIAL MODES 1, 2, 3 (CONT.)
Parameter Symbol Min Typ Max Unit
Signal to Noise
Signal to Noise 1/1 -> 1x
(OUT
± Unloaded) 1/2 -> 2x
(Note 15) 1/4 -> 4x
1/8 -> 8x
1/16 -> 16x
1/32 -> 32x
1/64 -> 64x
Signal to Noise 1/1 -> 1x
(BUF
± Unloaded, 1 kΩ Load) 1/2 -> 2x
(Note 15, 16) 1/4 -> 4x
1/8 -> 8x
1/16 -> 16x
1/32 -> 32x
1/64 -> 64x
Total Harmonic Distortion
Total Harmonic Distortion 1/1 -> 1x
(OUT
± Unloaded) 1/2 -> 2x
(Note 17, 18) 1/4 -> 4x
1/8 -> 8x
1/16 -> 16x
1/32 -> 32x
1/64 -> 64x
Total Harmonic Distortion 1/1 -> 1x
(BUF
± Unloaded) 1/2 -> 2x
(Note 16, 17, 18) 1/4 -> 4x
1/8 -> 8x
1/16 -> 16x
1/32 -> 32x
1/64 -> 64x
Total Harmonic Distortion 1/1 -> 1x
(BUF
± 1kΩ Load) 1/2 -> 2x
(Note 16, 17, 18) 1/4 -> 4x
1/8 -> 8x
1/16 -> 16x
1/32 -> 32x
1/64 -> 64x
SNR
SNR
THD
THD
THD
OUT
BUF
OUT
BUF
BUFL
CS4373A
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
114
114
114
113
111
108
103
110
106
101
95
89
83
77
- 116
- 115
- 114
- 112
- 111
- 110
- 106
- 108
- 105
- 100
- 94
- 88
- 82
- 76
- 102
- 101
- 97
- 92
- 87
- 82
- 76
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- 112
-
-
-
-
-
-
- 90
-
-
-
-
-
-
- 80
-
-
-
-
-
-
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Notes: 15. Specification measured using CS3301A amplifier at corresponding gain with the CS5371A / CS5372A
modulator measuring a 430 Hz bandwidth. Amplified noise dom inates for x16, x32, x64 amplifier gains.
16. Buffered outputs (BUF
17. Tested with a 31.25 Hz sine wave at -1 dB amplitude.
18. Specification measured using CS3301A amplifier at corresponding gain using the CS5371A / CS5372A
modulator measuring a 430 Hz bandwidth. Amplified noise in the harmonic bins dominates THD
measurements for x16, x32, x64 amplifier gains.
8 DS699F2
±) include 1/f noise not present on the prec isio n ou tp ut s (OU T±).
DC COMMON MODE 4
Parameter Symbol Min Typ Max Unit
DC Common Mode Characteristics
Common Mode Output VDC
Common Mode Drift (Note 14)VDC
DC Common Mode Accuracy
Common Mode Match 1/1 VDC
Noise
Noise (OUT
± Unloaded) 1/1 -> 1x
(Note 15) 1/2 -> 2x
1/4 -> 4x
1/8 -> 8x
1/16 -> 16x
1/32 -> 32x
1/64 -> 64x
Noise (BUF± Unloaded, 1 kΩ Load) 1/1 -> 1x
(Note 15, 16) 1/2 -> 2x
1/4 -> 4x
1/8 -> 8x
1/16 -> 16x
1/32 -> 32x
1/64 -> 64x
N
N
OUT
BUF
CM
CMTC
CMM
CS4373A
- (VA-)+2.35 -V
-300- µV/°C
-5 ±1 5 mV
-
-
-
-
-
-
-
-
-
-
-
-
-
-
6
7
7
7
7
9
14
7
10
17
33
64
130
257
-
-
-
-
-
-
-
-
-
-
-
-
-
-
µV
µV
µV
µV
µV
µV
µV
µV
µV
µV
µV
µV
µV
µV
rms
rms
rms
rms
rms
rms
rms
rms
rms
rms
rms
rms
rms
rms
DS699F2 9
DC DIFFERENTIAL MODE 5
Parameter Symbol Min Typ Max Unit
DC Differential Mode Characteristics
-
-
-
-
-
-
-
0.2
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1/4
1/8
VDC
FS
-
-
-
-
-
-
-
Full-scale Differential DC Output 1/1
(Note 19)1/2
1/16
1/32
1/64
2.5
1.25
625
312.5
156.25
78.125
39.0625
DC Differential Accuracy
Full-scale Accuracy 1/1
VDC
ABS
- 1.0 - 0.4 0.2 %FS
(Note 3, 11)
Relative Accuracy
1/2
VDC
REL
(Note 12) 1/4
1/8
1/16
1/32
1/64
Full-scale Drift (Note 14)VDC
TC
- 0.2
-
-
-
-
-
-25-µV/°C
±0.1
±0.1
-0.1 ± 0.4
-0.2 ± 0.9
-0.5 ± 1.7
-1.0 ± 3.6
DC Common Mode Characteristics
Common Mode (Note 13)VDC
Common Mode Drift (Note 13, 14)VDC
CM
CMTC
- (VA-)+2.35 -V
-300- µV/°C
Noise
Noise (OUT
± Unloaded) 1/1 -> 1x
(Note 15, 19) 1/2 -> 2x
1/4 -> 4x
1/8 -> 8x
1/16 -> 16x
1/32 -> 32x
1/64 -> 64x
Noise (BUF± Unloaded, 1 kΩ Load) 1/1 -> 1x
(Note 15, 16, 19) 1/2 -> 2x
1/4 -> 4x
1/8 -> 8x
1/16 -> 16x
1/32 -> 32x
1/64 -> 64x
N
N
OUT
BUF
-
-
-
-
-
-
-
-
-
-
-
-
-
-
9
9
9
9
10
11
15
10
12
18
32
67
122
265
CS4373A
V
V
mV
mV
mV
mV
mV
%
%
%
%
%
%
µV
rms
µV
rms
µV
rms
µV
rms
µV
rms
µV
rms
µV
rms
µV
rms
µV
rms
µV
rms
µV
rms
µV
rms
µV
rms
µV
rms
Notes: 19. DC differential output is chopper stabilized and includes low-level 32 kHz out-of-band noise which is
rejected by the digital filter during acquisition.
10 DS699F2
AC COMMON MODE 6
Parameter Symbol Min Typ Max Unit
AC Common Mode Characteristics
1/4
1/8
VCM
FS
BW
IMP
-
-
-
-
-
-
2.5
1.25
625
312.5
156.25
78.125
--100Hz
---20dBfs
Full-scale Common Mode AC Output 1/1
(Note 20)1/2
1/16
1/32
Full-scale Bandwidth (Note 8) VCM
Impulse Amplitude (Note 8, 10)VCM
AC Common Mode Accuracy
Common Mode Match (OUT
± Unloaded)
VCM
CMM
--115-105 dB
(Note 17, 20)
Common Mode Match (BUF
± Unloaded, 1 kΩ Load)
VCM
CMM
--95-85 dB
(Note 16, 17, 20)
Full-scale Accuracy 1/1
VAC
ABS
-- 0.3- %FS
(Note 3, 11)
1/8
VAC
REL
TC
-
-
-
-
-
-25-µV/°C
Relative Accuracy 1/2
(Note 12, 20)1/4
1/16
1/32
Full-scale Drift (Note 14)VCM
-0.1
-0.5
-1.0
-2.0
-5.0
DC Common Mode Characteristics
Common Mode Mean (Note 21) VCM
Common Mode Mean Drift (Note 14, 21)VCM
CMTC
CM
- (VA-)+2.35 -V
-300- µV/°C
-
-
-
-
-
-
-
-
-
-
-
CS4373A
V
pp
V
pp
mV
pp
mV
pp
mV
pp
mV
pp
%
%
%
%
%
Notes: 20. No AC common mode signal is output at 1/64 attenuation due to the attenuator architecture.
21. Common mode mean is defined as [(SIG
max
) + (SIG
min
)] / 2.
DS699F2 11
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