參數(shù)資料
型號(hào)： 935260690118
廠商： NXP SEMICONDUCTORS
元件分類： 無繩電話/電話
英文描述： TELEPHONE MULTIFUNCTION CKT, PDSO28
封裝： PLASTIC, SOT-136, SO-28
文件頁數(shù)： 53/56頁
文件大?。?/td> 360K
代理商： 935260690118
2000 May 19
6
Philips Semiconductors
Product specication
One-chip telephone ICs with speech,
dialler and ringer functions
UBA2050(A); UBA2051(A;C)
PINNING
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.
SYMBOL
PIN
DESCRIPTION
UBA2050
UBA2050A
UBA2051
UBA2051A UBA2051C
LN
11111
positive line terminal
SLPE
22222
slope (DC resistance) adjustment
REG
33333
line voltage regulator decoupling
IR
44444
receive amplier input
AGC
55555
automatic gain control and line-loss
compensation
DTMF
66666
DTMF transmit input
VDD
77777
stabilized supply for dialler and
ringer parts
XTAL
88888
oscillator input
DP/FL
99999
dial pulse/ash output (active LOW)
DMO
10
10
dial mode output
LED
10
10
DTMF mode indication output
CE/CSI
11
chip enable/cradle switch input;
note 1
CE/FDI
12
chip enable/frequency discrimination
input
MDY/TONE
13
melody (ringer) output/DTMF
generator output
KT
14
10
keytone output
C4
14
keyboard input/output C4
C3
15
keyboard input/output C3
C2
16
keyboard input/output C2
C1
17
keyboard input/output C1
R4
18
keyboard input/output R4
R3
19
keyboard input/output R3
R2
20
keyboard input/output R2
R1
21
keyboard input/output R1
GND
22
negative line terminal
QR
23
earpiece amplier output
GAR
24
gain adjustment earpiece amplier
RX
25
receive amplier output
MIC+
26
non-inverting microphone amplier
input
MIC
27
inverting microphone amplier input
VCC
28
supply for speech/transmission part
and peripherals
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