5036 series
OSCILLATOR CIRCUIT CONSTANT
The 5036 series oscillator setting varies with device version to optimize characteristics over the recommended
oscillation frequency range.
5036G
×
, 5036A
×
, 5036B
×
, 5036C
×
, 5036D
×
, 5036E
×
, 5036D1T
The 5036G
×
/A
×
/B
×
/C
×
/D
×
/D1T versions are suitable for use of crystal unit with large C0 value (approxi-
mately C0
≥
2.0pF (5036G
×
/A
×
/B
×
/C
×
/D
×)/
C0
≥
2.5pF (5036D1T
)
). The 5036E
×
version is suitable for use
of crystal unit with C0 value of approximately 2pF.
Version
5036G
×
5036A×
5036B×
5036C×
5036D×
5036E×
5036D1T
Fundamental,
SAW
Fundamental,
3rd overtone,
SAW
Fundamental,
3rd overtone,
SAW
Recommended crystal
unit/ resonator
Built-in capacitance
*1
[pF]
C
XIN
16
12
8
6
5
5
5
C
XOUT
16
12
8
6
5
5
5
Recommended oscillation
frequency range
*2
[MHz]
50 to 80
80 to 120
100 to 180
150 to 250
250 to 400
400 to 600
250 to 400
*1. The oscillator internal capacitance values includes parasitic capacitance.
*2. The recommended oscillation frequency is a yardstick value derived from the crystal used for NPC characteristics authentication.
However, the oscillator frequency band is not guaranteed. Specifically, the characteristics can vary greatly due to crystal
characteristics and mounting conditions, so the oscillation characteristics of components must be carefully evaluated.
Oscillator equivalent circuit
C0 cancel
C
XIN
XIN
R
PD
R
f
C
XOUT
XOUT
Oscillator block equivalent circuit
The 5036G×/A×/B×/C×/D×(T)/E× oscillator circuit has a C0 cancel circuit built-in to improve the oscillator margin. If power is applied when
there is an open circuit between XIN and XOUT, self oscillation may occur, which is not abnormal. Users should confirm that the oscillator
operates normally when a crystal unit is connected.
The XOUT pin of 5036E× version emphasizes high frequency characteristics. Accordingly, its electrostatic withstand voltage is significantly
lower than that of the other pins. ESD breakdown prevention handling precautions are strongly recommended.
SEIKO NPC CORPORATION —3
SEIKO [ SEIKO EPSON CORPORATION ]
