ATA5746 ATMEL Corporation, ATA5746 Datasheet - Page 34

• Manufacturer Part Number: ATA5746
• Description: (ATA5745 / ATA5746) UHF ASK/FSK Receiver
• Manufacturer: ATMEL Corporation

13. Electrical Characteristics: General (Continued)
All parameters refer to GND and are valid for T
Typical values are given at V
consumption, timing, and digital pin properties can be found in the specific sections of the “Electrical Characteristics”.
34
*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
Note:
No. Parameters
4.1
4.2 XTO start-up time
4.3 Maximum C
4.4
4.5
4.6
4.7
4.8
4.9
4
XTO
Transconductance XTO at
start
Pulling of LO frequency
f
C
and supply changes
Amplitude XTAL after
startup
Maximum series
resistance R
startup
Maximum series
resistance R
after startup
Nominal XTAL load
resonant frequency
External CLK_OUT
frequency
LO
L2
1. Pin numbers in parenthesis were measured with RF_IN matched to 50Ω according to
due to XTO, C
ATA5745/ATA5746 [Preliminary]
versus temperature
values as in
0
m
m
of XTAL
of XTAL at
of XTAL
L1
Table 2-2 on page 6
and
VS3V_AVCC
Test Conditions
At startup; after startup
the amplitude is regulated
to V
C
C
R
1.0 pF ≤ C
C
R
C
R
V(XTAL1, XTAL2)
peak-to-peak value
V(XTAL1)
peak-to-peak value
C
start impedance, this
value is important for
crystal oscillator startup
C
C
f
f
CLK_OUT_CRTL1 = 0
CLK_OUT_CTRL0 = 0
--> CLK_OUT disabled
CLK_OUT_CRTL1 = 0
CLK_OUT_CTRL0 = 1
--> division ratio = 3
CLK_OUT_CRTL1 = 1
CLK_OUT_CTRL0 = 0
--> division ratio = 6
CLK_OUT_CRTL1 = 1
CLK_OUT_CTRL0 = 1
--> division ratio = 12
RF
RF
0
m
m
m
m
m
m
0
0
m
≤ 2.2 pF
≤ 2.2 pF, small signal
≤ 2.2 pF
= 433.92 MHz
= 315 MHz
< 14 fF
≤ 120Ω
= 4.0 fF to 7.0 fF
≤ 120Ω
= 5 fF, C
= 15Ω
< 14 fF
= V
PPXTAL
VS5V
0
0
amb
= 3V, T
(RF
≤ 2.2 pF
= 1.8 pF
= –40°C to +105°C, V
IN
).
amb
= 25°C, and f
Pin
7,8
7,8
7,8
7,8
7,8
7,8
7,8
7,8
3
3
(1)
RF
Z
VS3V_AVCC
T
XTAL12_START
= 315 MHz unless otherwise specified. Details about current
Symbol
f
XTO_Startup
V
V
R
g
CLK_OUT
C
∆f
PPXTAL
PPXTAL
f
m, XTO
m_max
XTAL
0max
XTO
= V
VS5V
–1400
f
Min.
CLK
–5
= 2.7V to 3.3V, and V
disabled (low level on pin
f
f
f
CLK_OUT)
CLK
CLK
CLK
Figure 2-1 on page 6
13.57375
13.1433
–2000
Typ.
300
700
350
20
15
=
=
=
f
---------- -
f
---------- -
f
---------- -
XTO
XTO
XTO
12
3
6
VS5V
Max.
800
120
3.8
+5
= 4.5V to 5.5V.
with component
4596A–RKE–05/06
mVpp
mVpp
MHz
MHz
Unit
ppm
mS
pF
µs
Ω
Ω
Type*
D
C
C
C
D
B
A
B
B
A