EPVP6800 Datasheet, PDF (41/47 Pages) ELAN Microelectronics Corp – VFD Controller

9 RC/Crystal OSC
9.1General Description
This oscillator is designed for the ePVP6800 chip as clock source.
9.2 Features
RC oscillator: 32.768K Hz
Operating voltage: 2.2~5.5V.
Operating temperature: -20 ^oC ~ 70 ^oC
9.3Block Diagram
27pf
OSCI
ePVP6800
VFD Controller
27pf
OSCO
VSS
Fig. 12 RC/Crystal OSC Block Diagram
9.4Pin Description
Name
XIN
XOUT
VDD
VSS
I/O Type
I
O
-
-
Description
Crystal or RC oscillator connection pin
Crystal oscillator output pin
Power supply (+) pin
Power supply (–) pin
Remarks
9.5 Electrical
(Condition : VDD = 4.5 to 5.5V, Ta = -20°C to 70°C )
Parameters
Starting oscillation voltage
Stable time
Current consumption
Duty cycle
Frequency/Voltage deviation
Frequency/Temperature deviation
Frequency vs. Process deviation
Sym. Min. Typ. Max. Unit Conditions
Vs
-
2.0 3.2
V
Ts
-
5
10
clk Vdd = 5.0V
Idd
-
2
3
mA Vdd = 5.0V
45
50
55
%
∂f/∂V
-
1
1.5
%
∆f
-
1
2
%
-
±6
±10
%
This specification is subject to change without further notice.
11.28.2004 (V123) 35 of 47