TCD6000 Datasheet, PDF (28/36 Pages) Tripath Technology Inc. – 6 CHANNEL CLASS-T DIGITAL AUDIO PROCESSOR USING DIGITAL POWER PROCESSINGTM TECHNOLOGY

Output Timing Control
Tripath Technology, Inc. – Preliminary Technical Information
Addr
76h
Register Name
Output Timing Control
Default
D7
D6
D5
DEL DCB
0
0
0
0
D4
D3
D2
D1
D0
0
STB BB2 BB1 BB0
0
0
0
0
0
Control bits BB0 through BB2 are used to program a “break before make” delay in the Y outputs.
Break before make is a dead time at the Y-outputs where both Y and YB of each channel are low together
for a period of time in order to prevent shoot-through current in the output power MOSFET devices.
.
BB<2:0>
000
001
010
011
100
101
110
111
BBM Delay
0 nS
15 nS
30 nS
45 nS
60 nS
75 nS
90 nS
105 nS
Break before make (BBM) delay table
The STB control bit enables a 16-bit Startup Burst for driving bootstrapped output stages.
The DCB control bit controls the method of automatic DC calibration that will be used. DCB should be set to
‘1’ if a bridged output stage is being used. DCB should be cleared to ‘0’ if a single ended output stage is
being used. The BCn bits work in conjunction with the DCB bit. When DCB is set to '1', the BCn bits should
be set to '1'. When DCB is cleared to '0', the BCn bits should be cleared to '0'.
The DEL control bit enables the on-chip delay compensation. Delay compensation corrects for loop
instability that can be caused by propagation delay through power stages. It should always be set to ‘1’.
Individual Hard Mute Control
Addr
77h
Register Name
Individual Hard Mute Control
Default
D7
D6
D5
D4
D3
D2
D1
D0
0
HM6 HM5 HM4 HM3 HM2 HM1
0
0
0
0
0
0
0
0
0
Setting an HMn bit to ‘1’ stops switching on an individual output channel. Clearing the bit to ‘0’ resumes
normal operation.
Post-Gain Control
Addr
78h
7Ah
7Bh
Register Name
Post Gain Control
Default
Post Gain Control
Default
Post Gain Control
Default
D7
D6
D5
D4
D3
D2
D1
D0
GN1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
GN2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
GN6 GN5 GN4 GN3
0
0
0
0
0
0
0
0
0
0
0
0
28
TCD6000 – Rev. 1.0/09.04