UBA2050 查看數據表（PDF） - Philips Electronics
零件编号
产品描述 (功能)
比赛名单
UBA2050 Datasheet PDF : 52 Pages
| |||
Philips Semiconductors
One-chip telephone ICs with speech,
dialler and ringer functions
Product specification
UBA2050(A); UBA2051(A;C)
PINNING
SYMBOL
LN
SLPE
REG
IR
AGC
DTMF
VDD
XTAL
DP/FL
DMO
LED
CE/CSI
CE/FDI
MDY/TONE
KT
C4
C3
C2
C1
R4
R3
R2
R1
GND
QR
GAR
RX
MIC+
MIC−
VCC
UBA2050
1
2
3
4
5
6
7
8
9
10
−
11
12
13
14
−
15
16
17
18
19
20
21
22
23
24
25
26
27
28
UBA2050A
1
2
3
4
5
6
7
8
9
−
10
11
12
13
14
−
15
16
17
18
19
20
21
22
23
24
25
26
27
28
PIN
UBA2051
1
2
3
4
5
6
7
8
9
10
−
11
12
13
−
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
UBA2051A UBA2051C
DESCRIPTION
1
1
positive line terminal
2
2
slope (DC resistance) adjustment
3
3
line voltage regulator decoupling
4
4
receive amplifier input
5
5
automatic gain control and line-loss
compensation
6
6
DTMF transmit input
7
7
stabilized supply for dialler and
ringer parts
8
8
oscillator input
9
9
dial pulse/flash output (active LOW)
−
−
dial mode output
10
−
DTMF mode indication output
11
11
chip enable/cradle switch input;
note 1
12
12
chip enable/frequency discrimination
input
13
13
melody (ringer) output/DTMF
generator output
−
10
keytone output
14
14
keyboard input/output C4
15
15
keyboard input/output C3
16
16
keyboard input/output C2
17
17
keyboard input/output C1
18
18
keyboard input/output R4
19
19
keyboard input/output R3
20
20
keyboard input/output R2
21
21
keyboard input/output R1
22
22
negative line terminal
23
23
earpiece amplifier output
24
24
gain adjustment earpiece amplifier
25
25
receive amplifier output
26
26
non-inverting microphone amplifier
input
27
27
inverting microphone amplifier input
28
28
supply for speech/transmission part
and peripherals
Note
1. The cradle switch and the two positions ‘handset on the cradle’ and ‘handset lifted’ are further on in this document
referred to as ‘hook-switch’, respectively ‘on-hook’ and ‘off-hook’ position.
2000 May 19
6
Share Link: 