PCD3349 Просмотр технического описания (PDF) - Philips Electronics
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PCD3349 Datasheet PDF : 20 Pages
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Philips Semiconductors
8-bit microcontroller with DTMF generator
Product specification
PCD3349A
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
Inputs
VIL
LOW-level input voltage
VIH
HIGH-level input voltage
IIL
input leakage current
Port outputs (see Figs 10 to 12)
IOL
LOW-level port sink
current
IOH
HIGH-level port pull-up
source current
IOH
HIGH-level port push-pull
source current
VSS ≤ VI ≤ VDD
VDD = 3 V; VO = 0.4 V
VO = 2.7 V; VDD = 3 V
VO = 0 V; VDD = 3 V
VDD = 3 V; VO = 2.6 V
0
−
0.7VDD −
−1
−
0.3VDD V
VDD
V
+1
µA
0.7
3.5
−
mA
−10 −20 −
µA
−
−100 −300 µA
−0.7 −4
−
mA
TONE output (see Fig.4; notes 1 and 4)
VHGrms
VLGrms
∆f ⁄ f
VDC
ZO
VG
THD
HGF voltage (RMS)
LGF voltage (RMS)
frequency deviation
DC voltage level
output impedance
pre-emphasis of group
total harmonic distortion
Tamb = 25 °C; note 5
158 181 205 mV
125 142 160 mV
−0.6 −
0.6
%
−
0.5VDD −
V
−
100 500 Ω
1.5
2.0
2.5
dB
−
25
−
dB
Power-on-reset
∆VPOR
Power-on-reset level
variation around chosen
VPOR
note 6
−0.5 0
+0.5 V
Notes
1. TONE output requires VDD ≥ 2.5 V.
2. VIL = VSS; VIH = VDD; open-drain outputs connected to VSS; all other outputs open; value HGF = LGF = 0, unless
otherwise specified.
3. Crystal connected between XTAL1 and XTAL2; pins T1 and CE/T0 at VSS; value HGF = LGF = 0.
4. Values are specified for DTMF frequencies only (CEPT).
5. Related to the Low Group Frequency (LGF) component (CEPT).
6. VPOR is an option chosen by the user. Depending on its value, it may restrict the supply voltage range.
1998 May 11
11
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