Philips Semiconductors
Product specification
RDS/RBDS pre-processor
SAA6588
SYMBOL
tdec(MRO)
PARAMETER
decay time of the rectifier
rectifier voltage gain;
CONDITIONS
MIN.
TYP.
50
MAX.
UNIT
ms
C6 = 100 nF; R4 = 470 kΩ
−
−
Gv(MPTH)
VLVIN(rms) = 0.1 V;
fLVIN = 21 kHz
−
20
−
dB
VMPTH(DC)
Gv(MPTH) = 20 log
-------------------------
VLVIN(rms)
Zo(MPTH)
Vo(MPTH)
output impedance at pin MPTH
150
0.5
200
250
3.5
Ω
output voltage swing at
pin MPTH
−
V
ZL(MPTH)
CL(MPTH)
load impedance at pin MPTH
load capacitance at pin MPTH
with respect to ground
with respect to ground
5
−
−
−
kΩ
−
20
pF
Signal quality detector (pin MPX)
fco
cut-off frequency
85
−
90
−
95
1
kHz
dB
PBRR
αsb
pass-band ripple rejection
stop band attenuation
f = 40 kHz
30
−
−
−
dB
VSTEP2-3(rms)
input voltage (RMS value) for
transition of signal quality
sensitivity = 0 dB
(SQS = 01111; see Table 10);
85
−
mV
indication between step 2 and 3 f = 100 kHz
(SQI = 0010 and 0011)
∆GSQ
CRGSQ
tSQD
step size for signal quality input
gain
0.4
15.6
−
0.6
18.6
−
0.8
dB
dB
µs
control range for signal quality
input gain
21.6
850
measuring time
after acknowledgement of the
I2C-bus transceiver
Pause detector (pins AFIN and PSWN)
Zi(AFIN)
VI(AFIN)
Ith(rms)
input impedance
DC input voltage
f = 10 kHz
−
−
10
−
Ω
unloaded
−
Vref
4.4
V
AC input current for threshold
(RMS value)
PL1 = 1; PL0 = 1
3.1
6.2
µA
THpause(step)
THpause(R)
step size for pause threshold
3
4
5
dB
dB
control range for pause
threshold
10
12
14
Ii(offset)
input offset current
−
−
−
−
−
−
−
−
0.4
−
µA
ms
ms
ms
ms
ms
ms
tPON(min)
minimum time for pause
PT1 = 0; PT0 = 0
PT1 = 0; PT0 = 1
PT1 = 1; PT0 = 0
PT1 = 1; PT0 = 1
20.2
40.4
80.8
161.7
5
−
−
−
tPOFF(min)
minimum time for no pause
time error (all values)
−
∆t
−
1.0
1997 Sep 01
18
NXP [ NXP ]
