TDA3856 Datasheet, PDF (8/17 Pages) NXP Semiconductors – Quasi-split sound processor for all standards

Philips Semiconductors
Quasi-split sound processor for all standards
Product specification
TDA3856
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
FM1 and FM2 demodulators
Measurements with FM IF input signals of 5.5 MHz and 5.74 MHz with V_{i IF (RMS)} = 10 mV (f_mod = 1 kHz, deviation
∆f = ±50 kHz) at pins 15 and 19 without ceramic filters, R_s = 50 Ω.
De-emphasis 50 µs and V₅ = V_P (B/G standard).
Q_L-factor = 11 for resonant circuits at pins 6-7 and 10-11 (including IC).
V_{IC (RMS)}
intercarrier signals
(RMS values, pins 6-7 and 10-11)
−
100 −
mV
V
DC voltage (pins 6, 7, 10 and 11)
−
1.8 −
V
V_o(RMS)
AF output signals
(RMS values, pins 8 and 9)
0.84 0.95 1.07 V
∆V_o
difference of AF signals between
channels (pins 8 and 9)
−
−
1
dB
R_{8, 9}
V_{8, 9}
I_{8, 9(M)}
output resistance
DC voltage
allowed AC current of emitter output
(peak value)
note 3
75 100 130 Ω
1.8 2.1 2.4 V
−
−
±1.5 mA
I_{8, 9}
THD
V_o(RMS)
α_AM
S/N(W)
B
maximum allowed DC output current
total harmonic distortion
AF output signal (RMS value)
AM suppression
weighted signal-to-noise ratio
AF bandwidth (−3 dB)
THD = 1.5%
1 kHz; m = 0.3
CCIR468-3
−
−
−2
mA
−
0.5 1.0 %
1.25 −
−
V
48 54 −
dB
64 68 −
dB
lower limit
−
−
20
Hz
α_CR
V_{16, 18}
upper limit
crosstalk attenuation (pins 9-8)
DC voltage (pins 16 and 18)
100 −
−
kHz
60 70 −
dB
−
1.8 −
V
AM demodulator V₅ = 0 V (AM mode)
input signals at pins 1-2: SC = 32.4 MHz; f_mod = 1 kHz; m = 0.8; V_{i AM (RMS)} = 10 mV
V_{o (RMS)}
AF output signal at pin 9 (RMS value)
530 600 675 mV
R₉
output resistance (pin 9)
75 100 130 Ω
I_{o (M)}
maximum AC output current (peak value) note 3
−
−
±1.5 mA
I₉
maximum DC output current
−
−
−2
mA
V₉
DC voltage
1.8 2.1 2.4 V
THD
total harmonic distortion
Fig.4
−
1
2
%
S/N(W)
weighted signal-to-noise ratio
CCIR468-3
50 56 −
dB
B
AF bandwidth (−3 dB)
lower limit
upper limit
−
−
20
Hz
100 −
−
kHz
V₁₄
DC voltage (pin 14)
−
2
−
V
June 1994
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