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A
VCC
F
AUL
T
MUTE
SHUTDOWN
NC
ROUTP
ROUTN
BSRN
NC
PVCCR
PGNDR
VCLAMPR
VCLAMPL
PGNDL
PVCCL
NC
RINN
RINP
AGND
LINP
LINN
GAIN1
MSTR/SLV
NC
SYNC
ROSC
VREG
VBYP
AGND
BSLP
LOUTP
LOUTN
BSLN
NC
PGNDR
NC
GAIN0
17 18 19 20 21 22 23 24
29 30 31 32
33
34
35
36
41
42
43
44
45
46
47
48
64
63
62 61 60 59 58 57
52 51 50
49
1
2
3
4
5
6
7
8
13
14
15
16
Exposed
ThermalPad
9
10
11
12
25 26 27
28
56 55 54
53
37
38
39
40
NC
PGNDL
NC
BSRP
NC
SLOS509B – OCTOBER 2006 – REVISED JULY 2007
64 PIN, HTQFP PACKAGE
(TOP VIEW)
TERMINAL FUNCTIONS
TERMINAL
I/O
DESCRIPTION
NAME
NO.
Shutdown signal for IC (LOW = disabled, HIGH = operational). TTL logic levels
SHUTDOWN
61
I
with compliance to AVCC. (Active low)
RINN
5
I
Negative audio input for right channel. Biased at VREG/2.
RINP
6
I
Positive audio input for right channel. Biased at VREG/2.
LINN
9
I
Negative audio input for left channel. Biased at VREG/2.
LINP
8
I
Positive audio input for left channel. Biased at VREG/2.
GAIN0
10
I
Gain select least significant bit. TTL logic levels with compliance to VREG.
GAIN1
11
I
Gain select most significant bit. TTL logic levels with compliance to VREG.
Mute signal for quick disable/enable of outputs (HIGH = outputs high-Z, LOW =
MUTE
62
I
outputs enabled). TTL logic levels with compliance to AVCC. (Active high)
TTL compatible output. HIGH = short-circuit fault. LOW = no fault. Only reports
FAULT
63
O
short-circuit faults. Thermal faults are not reported on this terminal.
BSLP
26
I/O
Bootstrap I/O for left channel, positive high-side FET.
Power supply for left channel H-bridge, not internally connected to PVCCR or
PVCCL
35, 36
AVCC.
LOUTP
27, 28
O
Class-D 1/2-H-bridge positive output for left channel.
PGNDL
37, 38
Power ground for left channel H-bridge.
LOUTN
29, 30
O
Class-D 1/2-H-bridge negative output for left channel.
BSLN
31
I/O
Bootstrap I/O for left channel, negative high-side FET.
VCLAMPL
40
Internally generated voltage supply for left channel bootstrap capacitor.
VCLAMPR
41
Internally generated voltage supply for right channel bootstrap capacitor.
BSRN
50
I/O
Bootstrap I/O for right channel, negative high-side FET.
ROUTN
51, 52
O
Class-D 1/2-H-bridge negative output for right channel.
PGNDR
43, 44
Power ground for right channel H-bridge.
5