Tripath Technology, Inc. – Preliminary Technical Information
TCD6001 Pin Description
Pin
1
2
Function
VNNSENSE
GA
Type
Input
Ground
Description
Overvoltage and Undervoltage sensing for the VNN supply.
Analog Ground
3
4
5
FB1N
FB1P
NC
Input
Input
Float
Switching feedback
Switching feedback
Not internally connected
6
NC
Float
Not internally connected
7
8
9
FB2P
FB2N
FAULT
FB3N
FB3P
FB4P
FB4N
AM_OUT
HMUTE
Y4B
Y4
Y3B
Y3
Y2B
Y2
NC
NC
Y1B
Input
Input
Input
Input
Input
Input
Input
Switching feedback
Switching feedback
3-level digital input to detect power stage fault condition
Switching feedback
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Switching feedback
Switching feedback
Switching feedback
5V Logic Output
5V Logic Output
5V Logic Output
5V Logic Output
5V Logic Output
5V Logic Output
5V Logic Output
5V Logic Output
Float
Used to activate AM mode on external power stage
Indicates processor channels are muted. Polarity is selectable.
Switching modulator output
Switching modulator output
Switching modulator output
Switching modulator output
Switching modulator output
Switching modulator output
Not internally connected
Not internally connected
Switching modulator output
Float
5V Logic Output
5V Logic Output
Float
Float
5V Logic Output
Ground
Y1
NC
NC
Switching modulator output
Not internally connected
Not internally connected
Digital Output used to activate sleep mode on external power stage
Analog Ground
Determines the state of HMUTE (pin 15) during a fault condition. If
HMUTE_SET is cleared to 0, the HMUTE will be low during a fault
condition. If HMUTE_SET is set to 1, then HMUTE will be high during a
fault condition.
SLEEPB_OUT
GA
HMUTE_SET
5V Logic Input
31
32
OVRLDB
TST_EN
5V Logic Output
5V Logic Output
Indicates that one or more channels are near saturation
Digital output to put power stage in to test mode. Can be used as a
general purpose I/O during normal operation.
If BYP_CAL is set to 1, the automatic DC calibration function is disabled.
If BYP_CAL is set to 0, the DC calibration function is performed at startup.
5V analog power supply
33
BYP_CAL
5V Logic Input
34
35
36
37
VA50
GA50
AM_IN
Power
Ground
5V Logic Input
5V Logic Input
Analog ground for VA50
If AM_IN is set to 1, the system uses AM mode.
Sets DCB control bit power up defaults and selects VCLAMP_SE or
VCLAMP_BR
SE/BRGB
38,
39
GAIN0, GAIN1
5V Logic Input
Digital inputs which set the power up default modulator gain. GAIN0,
GAIN1=0 set the lowest gain, while GAIN0,GAIN1=1 set the highest gain
which is used for maximum output power for bridged applications.
Test pin – must be kept floating
Not internally connected
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
TEST
NC
GA
VA33
VA33
NC
GA
GA
GD
VD18CAP
VD33
TEST
NC
Float
Float
Ground
Power
Power
Float
Ground
Ground
Ground
Output
Power
Float
Float
Float
Float
Float
Ground
Ground
Analog ground
3.3V analog power supply
3.3V analog power supply
Not internally connected
Analog ground
Analog ground
Digital ground
Decoupling point for internal 1.8V regulator
3.3V digital power supply
Test pin – must be kept floating
Not internally connected
NC
NC
NC
GA
Not internally connected
Not internally connected
Not internally connected
Analog ground
Analog ground
GA
7
TCD6001 – JL/Rev. 0.9/07.05
TRIPATH [ TRIPATH TECHNOLOGY INC. ]
