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參數資料
型號: PCD3312CT
廠商: NXP SEMICONDUCTORS
元件分類: 無繩電話/電話
英文描述: DTMF/modem/musical-tone generators
中文描述: TELEPHONE MULTIFUNCTION CKT, PDSO8
封裝: PLASTIC, SOT176-1, SOP-8
文件頁數: 18/28頁
文件大小: 176K
代理商: PCD3312CT
1996 Nov 21
18
Philips Semiconductors
Product specification
DTMF/modem/musical-tone generators
PCD3311C; PCD3312C
Notes
1.
Oscillator ON; V
DD
= 3 V; crystal connected between OSCI and OSCO; D0/SCL and D1/SDA connected via
resistance of 5.6 k
to V
DD
; all other pins left open.
As note 1, but with oscillator OFF.
Related to the level of the LOW group frequency component, according to CEPT recommendations.
Related to the level of the fundamental frequency.
Oscillator must be running.
Values are referenced to the 10% and 90% levels of the relevant pulse amplitudes, with a total voltage swing from
V
SS
to V
DD
.
2.
3.
4.
5.
6.
TONE output
(see test circuit, Fig.15)
V
HG(RMS)
V
LG(RMS)
V
DC
G
v
THD
DTMF output voltage (RMS), HIGH group
DTMF output voltage (RMS), LOW group
DC voltage level
voltage gain (pre-emphasis) of group
Total Harmonic Distortion; T
amb
= 25
°
C
dual tone (note 3)
modem tone (note 4)
output impedance
158
125
1.85
192
150
1
2
V
DD
2.10
205
160
2.35
mV
mV
V
dB
25
29
0.1
0.5
dB
dB
k
Z
o
OSCI input
V
OSC(p-p)
maximum allowable amplitude at OSCI
V
DD
V
SS
V
Timing (V
DD
= 3 V)
t
OSC(ON)
t
TONE(ON)
t
SPW
t
DS
t
DH
oscillator start-up time
TONE start-up time (note 5)
STROBE pulse width (note 6)
data set-up time (note 6)
data hold time (note 6)
400
150
100
3
0.5
ms
ms
ns
ns
ns
SYMBOL
PARAMETER
MIN.
TYP
MAX.
UNIT
Fig.15 TONE output test circuit.
handbook, halfpage
MGG513
TONE
PCD3311C
PCD3312C
VDD
VSS
10 k
1
μ
F
50 pF
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