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TDA1301T View Datasheet(PDF) - Philips Electronics

Part Name
Description
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TDA1301T
Philips
Philips Electronics Philips
TDA1301T Datasheet PDF : 14 Pages
First Prev 11 12 13 14
Philips Semiconductors
Digital servo processor (DSIC2)
Product specification
TDA1301T
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Slave clock mode: XTALI
VIL
LOW level input voltage
VIH
HIGH level input voltage
2.0
tH
HIGH level input time
relative to the clock
45
period
0.5
V
V
55
%
Notes
1. fsys = 4.2336 MHz; VRL = 0 V; VRH = 2.5 V (externally applied).
2. Internal reference source with 4 different output voltages. Selection is achieved via the serial interface. The given
values are for an unloaded reference voltage.
3. fripple = 1 kHz; Vripple = 0.5 V (p-p).
4. Internal reference is switched OFF by serial interface. VRH is the reference input.
5. Externally applied VRH = 2.5 V and VRL = 0 V, measuring bandwidth: 200 Hz to 20 kHz, fi(ADC) = 1 kHz.
6. The gain of the ADC is defined as: GADC = fsys/Imax (counts/mA). Thus the digital output is II × GADC where: digital
output is the number of pulses at the digital output in counts per second and II is the DC input current in mA.
The maximum input current depends on the system frequency (fsys) and on Vref = VRH VRL
For D1 to D4: Ii(max) = 1.5 × fsys × Vref × 106/Ri × fsys [µA].
For R1 and R2: Ii(max) = 0.75 × fsys × Vref × 106/Ri × fsys [µA].
The gain tolerance is the deviation from the calculated gain regarding note 1.
7. At 10 to 90% levels with CL = 50 pF.
8. A resistor must be connected to set the gain of the oscillator circuit. The value of the resistor depends on the crystal
or resonator connected to the oscillator circuit (see also Chapter “Application information” ).
9. When the TDA1301T is supplied by an external oscillator frequency, no crystal or resonator is required while the
external reference resistor has different limits.
March 1994
12
 

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