TDA5230XT Infineon Technologies, TDA5230XT Datasheet - Page 54

• Manufacturer Part Number: TDA5230XT
• Manufacturer: Infineon Technologies

Specifications of TDA5230XT

• Operating Temperature (min): -40C
• Operating Temperature (max): 105C
• Operating Temperature Classification: Industrial
• Product Depth (mm): 4.4mm
• Product Length (mm): 9.7mm
• Lead Free Status / Rohs Status: Compliant

TDA523x
Functional Description
2.4.6
Polling Timer Unit
SPM
SPM
SPM
f
/ 64
f
f
sys
RT
OnOff
Reference-Timer
On-Off-Timer
Active-Idle Period Timer
(8 Bit)
(14 Bit)
(7 Bit)
Self-Polling-Mode (SPM)
No WU
FSM
Polling Mode
to
Master-Control-Unit
Figure 23
Polling Timer Unit
The Polling Timer Unit consists of a Counter Stage and a Control FSM (Finite State
Machine).
The Counter Stage is divided into three sub-modules.
The Reference Timer is used to divide the state machine clock (fsys/64) into the slower
clock required for the SPM timers.
The On/Off Timer and the Active Idle Period Timer are used to generate the polling
signal. The whole unit is controlled by the SPM FSM.
Data Sheet
50
Version 4.0, 2007-06-01