ATA5276 ATMEL Corporation, ATA5276 Datasheet - Page 13

• Manufacturer Part Number: ATA5276
• Description: TRANSMITTER IC
• Manufacturer: ATMEL Corporation

9. Electrical Characteristics
10. External Components
The following external components have to be applied to the circuit for functional operation (see
4909C–AUTO–01/07
*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
Notes:
Component
C1
D1 standard diode
R
R
C3
C2
R
R
L
R
C
Notes:
No.
ANT
6.1
6.2
6.3
6.4
6.5
6.6
6.7
6.8
6.9
EXT
CR
SENSE
DIO
ANT
ANT
6
antenna inductance
resonant-frequency adjuster
Q-factor adjuster
1. 8V < V(DVCC) < 24V; –40 C <
2. Definition of DC
3. I
Parameters
Transmission Protocol
LF data baud rate
Anti-bouncing time for
activate half-bridge
Anti-bouncing time for
de-activate half-bridge
Acknowledge pulse
width
Error signal pulse
width
Transmission time out
de-activated
half-bridge
Transmission time out
activated half-bridge
Time out reset pulse
width
Time out reset pulse
period
1. Sensitivity at input SENSE is proportional to resistor Rs times antenna peak current.
2. For antenna peak value 1.5A.
3. Recommended range: R
VDIO,stby
= 7.5 µA at T
DRV
see
amb
Test Conditions
DIO = H
for f
DIO = L
for f
“Application Hints” on page 14
= 90°C
CR
VCO
VCO
= 25 to 100 k .
= 125 kHz
= 125 kHz
H,
L,
amb
(1)
< 105 C, unless otherwise specified; all values refer to GND
(Continued)
SENSE
BOOST
RCR
DVCC
REXT
VCC
DIO
Pin
(3)
Pin
(1)
Symbol
T
T
Bd
T
T
T
T
T
T
OUTH
OUTL
ACK
ERR
ORP
0.1
Min.
OR
0.68
DH
DL
0.6
RF
25
(2)
Min.
345/2.5
4.7/400
100/50
1.5/50
Typ.
100
0.5
10
10
1
1
Figure 11-1 on page
Typ.
256
128
64
64
16
16
32
15
1
Max.
200
2
1
6
Max.
4
ATA5276
15).
kbit/s
Unit
ms
ms
ms
µs
µs
µs
µs
µs
µH/
µF/V
nF/V
Unit
A/V
k
k
µF
nF
k
Type*
C, D
B
B
B
B
B
13