ata5428 ATMEL Corporation, ata5428 Datasheet - Page 78

• Manufacturer Part Number: ata5428
• Description: Uhf Ask/fsk Transceiver
• Manufacturer: ATMEL Corporation

12. Electrical Characteristics: General (Continued)
This device is manufactured with an industrial (not automotive) grade process and process controls. Although this device may
meet certain automotive grade criteria in performance, Atmel can not recommend that this device be used in any automotive
application.
All parameters refer to GND and are valid for T
and V
about current consumption, timing and digital pin properties can be found in the specific sections of the “Electrical Characteristics”.
78
*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
Note:
4.10
No. Parameters
4.6
4.7
4.8
4.9
VS2
Pulling of radio frequency
f
C
and supply changes
Amplitude XTAL after
start
Real part of XTO
impedance at start
Maximum series
resistance R
after start
Nominal XTAL load
resonant frequency
RF
L2
= V
1. Pin numbers in brackets mean they were measured with RF_IN matched to 50 according to
due to XTO, C
ATA5423/ATA5425/ATA5428/ATA5429
versus temperature
-
up
VAUX
component values according to
with component values according to
-
= 5.0V (Base
up
m
of XTAL
L1
-
up
and
-
station Application). Typical values are given at f
Test Conditions
1.0 pF
C
R
PLL adjusted with
FREQ at nominal
temperature and supply
voltage
C
R
V(XTAL1, XTAL2)
peak
V(XTAL1)
peak
C
start impedance, this
value is important for
crystal oscillator startup
C
C
f
f
f
f
f
RF
RF
RF
RF
RF
m
m
m
m
0
0
m
= 315 MHz
= 345 MHz
= 433.92 MHz
= 868.3 MHz
= 915 MHz
= 5 fF, C
120
2.2 pF, small signal
15
2.2 pF
-
-
14 fF
14.0 fF
to
to
-
-
peak value
peak value
C
0
Table 3-2 on page 12
0
amb
= 1.8 pF
2.2 pF
Table 3-7 on page
= 25°C, V
VS1
24, 25
24, 25
24, 25
24, 25
24, 25
Pin
4, 10
= V
(1)
VS2
and RF_OUT matched to 50 according to
22.
= 3.0V (1
Symbol
V
V
R
Re
PPXTAL
PPXTAL
f
m_max
f
XTAL
XTO2
XTO
-
RF
battery application), V
= 433.92 MHz unless otherwise specified. Details
Min.
–
2
12.73193
13.94447
13.25311
13.41191
14.13324
–
Typ.
2,000
700
350
15
VS2
= 6.0V (2-battery application)
Figure 3-1 on page 11
–
Figure 3-10 on page 21
Max.
1,500
120
+2
4841D–WIRE–10/07
mVpp
mVpp
Unit
ppm
MHz
MHz
MHz
MHz
MHz
Type*
with
C
C
C
B
B
D