參數(shù)資料
型號(hào)： AD1994ACPZ
廠商： ANALOG DEVICES INC
元件分類： 音頻／視頻放大
英文描述： Class-D Audio Power Amplifier
中文描述： 25 W, 2 CHANNEL, AUDIO AMPLIFIER, QCC64
封裝： 9 X 9 MM, LEAD FREE, MO-220VMMD-4, LFCSP-64
文件頁(yè)數(shù)： 7/16頁(yè)
文件大小： 389K
代理商： AD1994ACPZ
Preliminary Technical Data
AD199x
PIN CONFIGURATIONS AND FUNCTIONAL DESCRIPTIONS
Table 4. Pin Function Descriptions
LFCSP
Pin No.
Pin No.
1,2,3
3
PGND1
4,5,6
2
OUTL+
7,8,9,10
1,36
PVDD1
11,12,13
35
OUTL-
14,15,16
34
PGND1
17
33
ERR2
18
32
ERR1
19
31
ERR0
20
DCTRL2
21
DCTRL1
22
DCTRL0
23,26
29,30
DGND
24,25
28
DVDD
27
27
CLKI
28
26
CLKO
29
25
MUTE
30
24
RST/PDN
31
23
PGA1
32
22
PGA0
33,34,35
21
PGND2
36,37,38
20
OUTR-
39,40,41,42
18,19
PVDD2
43,44,45
17
OUTR+
46,47,48
16
PGND2
49
15
AGND
50
14
NFR+
51
13
NFR-
52
NC
53
12
AINR
54
NC
55
11
REF_FILT
56
10
AGND
57
9
AVDD
58
NC
59
NC
60
8
AINL
61
4
NC
62
7
NFL-
63
6
NFL+
64
5
MONO
Rev. PrA – 1/20/05 | Page 7 of 16
PSOP
Name
In/Out
Description
Negative power supply for high power transistors A2 and B2
Output of high power transistor pair, left channel positive polarity
Positive power supply for high power transistors, left channel high-side
Output of high power transistor pair, left channel negative polarity
Negative power supply for high power transistors, left channel low-side
Active low thermal shutdown error output
Active low thermal warning error output
Active low overcurrent error output
Non-overlap time setting MSB
Non-overlap time setting
Non-overlap time setting LSB
Negative power supply for low power digital circuitry
Positive power supply for low power digital circuitry
Clock input for 256 × f
S
audio modulator clock
Inverted version of CLKI for use with external crystal oscillator
Active low mute input
Active low reset/power-down input
Programmable gain amplifier (PGA) gain MSB
Programmable gain amplifier (PGA) gain LSB
Negative power supply for right channel high power transistors
Output of high power transistor pair, right channel negative polarity
Positive power supply for right channel high power transistors
Output of high power transistor pair, right channel positive polarity
Negative power supply for right channel high power transistors
Negative power supply for low power analog circuitry
Right channel negative feedback – positive input
Right channel negative feedback – negative input
Not Connected. This pin is not used and should be left floating
Analog input for right channel
Not Connected. This pin is not used and should be left floating
Filter pin for bandgap reference - should be bypassed to AGND
Negative power supply for low power analog circuitry
Positive power supply for low power analog circuitry
Not Connected. This pin is not used and should be left floating
Not Connected. This pin is not used and should be left floating
Analog input for left channel
Not Connected. This pin is not used and should be left floating
Left channel negative feedback – negative input
Left channel negative feedback – positive input
Mono mode (drive left and right output transistors from same modulator)
O
O
O
O
O
I
I
I
I
O
I
I
I
I
O
O
I
I
I
O
I
I
I
I
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