tda5251f1 Infineon Technologies Corporation, tda5251f1 Datasheet - Page 79

• Manufacturer Part Number: tda5251f1
• Description: Ask/fsk 315mhz Wireless Transceiver
• Manufacturer: Infineon Technologies Corporation

Confidential
Table 4-5
Bus Interface Characteristics
Preliminary Specification
10 LOW level output voltage at
11
12 Bus free time between STOP
13 Hold time (repeated) START
#
1
2
3
4
5
6
7
9 Pulse width of spikes which
TX operation, int. controlled
must be suppressed by the
t rise (0.1*Vdd to 0.9*Vdd)
t fall (0.9*Vdd to 0.1*Vdd)
High-level Input Voltage
Low-level Input Voltage
and START condition
SLC clock frequency
Output High Voltage
Output Low Voltage
Data rate RX ASK
Data rate RX FSK
Data rate TX ASK
Data rate TX FSK
CLKDIV Pin 26
Digital Inputs
RXTX Pin 5
Parameter
input filter
condition.
BusData
Digital Characteristics with T
Symbol
t
f
f
f
f
HO.STA
RX.ASK
RX.FSK
TX.ASK
TX.FSK
V OH
V OL
V OL
f
t
V
V IH
V IL
t
BUF
SLC
SP
t r
t f
OL
V
min
0.2
1.3
0.6
Limit Values
dd
0
0
0
A
-
= 25 °C , V
79
Vdd-
1.15
typ max
0.4
0.4
0.4
10
10
10
10
35
30
400
V
0.2
0.4
50
dd
Vdd
kBaud
kBaud
kBaud
kBaud
= 2.1 ... 5.5 V
Unit
kHz
ns
ns
ns
µs
µs
V
V
V
V
V
V
V
After this period, the
generated, only I
first clock pulse is
Test Conditions
Manch.@+9dBm
Manch.@+9dBm
3mA sink current
PRBS9, Manch.
PRBS9, Manch.
only I
I
@30kHz dev.
@30kHz dev.
source
Isink=800uA
I
Isink=3mA
@Vdd=3V
@Vdd=3V
sink
load 10pF
load 10pF
PRBS9,
PRBS9,
V
V
V
V
dd
dd
dd
dd
=400uA
2
=350uA
C mode
=5V
=5V
=5V
=5V
TDA5251 F1
Version 1.0
Reference
2
2003-02-18
C
L Item
X
X
X
X
X
X
X
X
X
X
X
X
1
1