tda5251f1 Infineon Technologies Corporation, tda5251f1 Datasheet - Page 34

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

Confidential
This means that the device needs t
When activating TX it requires t
For timing information refer to Table 4-3.
For test purposes a TESTMODE is provided by the Sequencer as well. In this mode the BLOCK_PD
register be set to various values. This will override the Sequencer timing. Depending on the settings
in Config Register 00H the corresponding building blocks are enabled, as shown in the subsequent
figure.
Figure 2-17
2.4.19
It supports an external logic with a programmable Clock at pin 26 (CLKDIV).
Figure 2-18
The Output Selection and Divider Ratio can be set in the CLK_DIV register.
Preliminary Specification
Clock Divider
Sequencer‘s capability
Clock Divider
13 MHz
INTERNAL BUS
TXSU
COUNTER
INTERNAL BUS
WINDOW COUNT COMPLETE
ASK/FSK
4 BIT
DDSU
RESET
32 kHz
RX ON
TX ON
setup time to enable the power amplifier.
setup time to start the data detection after RX is activated.
32 kHz
34
16
16
2
16
CLKDiv
RC- OSC.
XTAL FREQU.
26
SELECT
Functional Description
TDA5251 F1
Version 1.0
sequencer_raw.wmf
2003-02-18
clk_div.wmf