EVAL-AD1955EB Datasheet, PDF (20/24 Pages) Analog Devices – High Performance Multibit
- DAC with SACD Playback

AD1955
12V
IOUTL+
IOUTR–
C7
OPEN
C8
OPEN
IOUTL–
IOUTR+
VBIAS
R2
1.00k⍀
C9
100pF
R4
402⍀
R3
1.00k⍀
NOTE REVERSE POLARITY
OF RIGHT CHANNEL OUTPUTS
R5
1.00k⍀
R6
100⍀
C10
100pF
U2-A
COMP
AD797
OUT
NL–
NL+
U3-A
COMP
AD797
OUT
NL–
NL+
R9
1.00k⍀
R10
1.00k⍀
+12V
R7
100⍀
C11
100pF
R8
1.00k⍀
AD797
R11
1.00k⍀
–3dB at 100 kHz
C12
390pF
R12
C13
1.00k⍀ 470pF
C14
470pF
J1
+
MONO
–
DIRECT
OUT
G
6VRMS
SET CONTROL REGISTER 0, BITS 11:10
TO SELECT LEFT OR RIGHT CHANNEL
+
0.1␮F
4.7␮F
+
0.1␮F
4.7␮F
12V
IOUTL+
R24
1.00k⍀
R25
1.00k⍀
IOUTR–
C23
OPEN
C24
OPEN
IOUTL–
C25
100pF
IOUTR+
VBIAS
R26
402⍀
NOTE REVERSE
POLARITY OF RIGHT
CHANNEL OUTPUTS
+12V
–12V
OP AMP BYPASS
DUPLICATE FOR EACH PART
Figure 11. Mono Differential Output
R27
1.00k⍀
R28
100⍀
C26
100pF
U6-A
COMP
AD797
OUT
NL–
NL+
U7-A
COMP
AD797
OUT
NL–
NL+
R29
C27
100⍀ ^R30 100pF
1.00k⍀
R31
681⍀
R32
681⍀
R33
226⍀
R34
324⍀
C28
5.6nF
C29
5.6nF
R35
324⍀
R36
226⍀
C30
2.7nF
R37
100⍀
U8-A
COMP
AD797
OUT
NL–
NL+
–3dB at 75 kHz
R38
332⍀
J3
C32
3.9nF
R39
OPEN
MONO
FILTER
OUT
2VRMS
C31
2.7nF
SET CONTROL REGISTER 0, BITS 11:10
TO SELECT LEFT OR RIGHT CHANNEL
AD797
+
0.1␮F
4.7␮F
+
0.1␮F
4.7␮F
–12V
OP AMP BYPASS
DUPLICATE FOR EACH PART
Figure 12. Mono Single-Ended Output
–20–
REV. 0