P7000 FUNCTIONAL BLOCK DIAGRAM
XCard
Crossover
U7B
Negative Input
Buffer
U1B
Balanced
Signal
Soft Start
Switch Delay
Q1, C29, R13
Current
Source
Q103
DC Offset
Integrator
U2B, C22, C21,
R11
CMRR
Adjust
R8
Differential Amp
Q6, Q7
Positive Input
Buffer
U1A
XCard
Crossover
U7A
Level
Control
R24
Input Buffer
U2a
Feedback
Network
Driver Cascode
Q11, Q12 Output
Q40, Q41,
Q42, Q43
B–
–94V
Output
Local
Feedback
Bias
Adjust
R136
Driver Cascode
Q9, Q10
Current Mirror
Q104, Q105
DIABLO
R73, CR16
Q17, Q18
Output
Q30, Q31,
Q32, Q33
B+
+94V