TDA9887 Philips Semiconductors, TDA9887 Datasheet - Page 28

• Manufacturer Part Number: TDA9887
• Description: I2C-bus controlled multistandard alignment-free IF-PLL demodulator with FM radio
• Manufacturer: Philips Semiconductors

Philips Semiconductors
2004 Aug 25
V
V
QV
V
V
I
AFC circuit and AGC monitor options (pin AFC); see Figs 11 and 12; notes 14 and 15
V
V
I
I
TV
AFC
Qf
Qf
R
AFC
Qf
Qf
I
I
sink
o(source)
o(sink)
o(source)
o(sink)
QV
G
i(SIF)(start1)(rms)
i(SIF)(start2)(rms)
o
sat
sat(ul)
sat(ll)
ADIO MODE
I
IF-PLL demodulator with FM radio
VIF(a)
VIF(d)
RIF(a)
RIF(d)
2
IF
TOP
MODE
SYMBOL
C-bus controlled multistandard alignment-free
stps
stps
TOP
/ T
SIF input signal voltage for
minimum starting point of tuner
takeover at pins SIF1 and SIF2
(RMS value)
SIF input signal voltage for
maximum starting point of tuner
takeover at pins SIF1 and SIF2
(RMS value)
tuner takeover point accuracy
takeover point variation with
temperature
permissible output voltage
saturation voltage
sink current
IF slip by automatic gain control tuner gain current from
upper limit saturation voltage
lower limit saturation voltage
output source current
output sink current
AFC control steepness
analog accuracy of AFC circuit
digital accuracy of AFC circuit
via I
AFC control steepness
analog accuracy of AFC circuit
digital accuracy of AFC circuit
via I
SIF or FM-AGC monitor source
current
SIF or FM-AGC monitor sink
current
2
2
C-bus
C-bus
PARAMETER
I
R
no R
I
I
R
and +15 dB via I
(see Table 13)
I
R
no R
I
I
from external source
I
no tuner gain reduction;
V
maximum tuner gain
reduction; V
20 % to 80 %
definition: I
I
I
1 digit = 25 kHz
definition: I
I
I
1 digit = 25 kHz
see Table 16
see Table 16
TAGC
2
TAGC
TAGC
2
TAGC
TAGC
AFC
AFC
AFC
AFC
C-bus (see Table 13)
C-bus (see Table 13)
TAGC
TOP
TOP
TOP
= 0; f
= 0; f
= 0; f
= 0; f
28
CONDITIONS
TOP
TOP
= 120 A;
= 22 k or
= 120 A;
= 0
= 120 A;
= 10 k or
= 120 A
= 450 A
= 8.8 V
and 15 dB via
and 0 dB via
REF
REF
REF
REF
or no R
TAGC
AFC
AFC
= 4 MHz
= 4 MHz;
= 4 MHz
= 4 MHz;
/ f
/ f
2
C-bus
= 1 V
VIF
RIF
TOP
22.5
7
450
3
V
160
160
0.85
0.85
20
20
10
10
P
MIN.
1 digit
1 digit
0.6 V
1
45
17
0.03
600
5
0.3
200
200
1.05
1.05
P
TYP.
0.3
Product specification
2.5
43
0.07
8.8
0.5
0.75
750
8
0.6
240
240
1.25
+20
+20
+ 1 digit
1.25
+10
+10
+ 1 digit
600
270
MAX.
TDA9887
mV
mV
mV
dB/K
V
V
dB
V
V
kHz
kHz
kHz
kHz
A
A
A
A
A/kHz
A/kHz
A
A
UNIT