TDA5051A Datasheet, PDF (11/28 Pages) NXP Semiconductors – Home automation modem

Philips Semiconductors
Home automation modem
Product specification
TDA5051A
Table 1 Clock oscillator parameters
OSCILLATOR
FREQUENCY
f_osc
6.080 to 9.504 MHz
CARRIER FREQUENCY
f_cr
95 to 148.5 kHz
CLOCK OUTPUT
FREQUENCY
1_⁄2fosc
3.040 to 4.752 MHz
EXTERNAL COMPONENTS
C1 = C2 = 27 to 47 pF;
R_p = 2.2 to 4.7 MΩ;
XTAL = standard quartz crystal
Table 2 Calculation of parameters depending on the clock frequency
SYMBOL
PARAMETER
f_osc
oscillator frequency
f_CLKOUT
f_cr
t_su
clock output frequency
carrier frequency/digital filter tuning
frequency
set-up time of the shaped burst
t_h
hold time of the shaped burst
t_W(DI)(min) minimum pulse width of DATA_IN signal
t_{W(burst)(min)} minimum burst time of V_O(DC) signal
t_c(AGC)
AGC time constant
t_su(demod) demodulation set-up time
t_h(demod) demodulation hold time
CONDITIONS
with on-chip oscillator: frequency of the crystal
quartz; with external clock: frequency of the
signal applied at OSC1
1_⁄2fosc
1_⁄64fosc
UNIT
Hz
Hz
Hz
2-f--_{c-3--r or} 1--f--4_o---s7---_c-2-
s
-2f--_c-3--_r or ^1--f--4_o---_s^7---_c-2-
s
t_su + -f-1_c---_r
s
t_W(DI)(min) + t_h
s
2--f--5_o---s1---_c-4-
s
3--f--2_o---s0---_{c-0- (≈max.)}
s
3--f--8_o---s0---_{c-0- (≈max.)}
s
1999 May 31
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