U4488B Datasheet, PDF (5/9 Pages) TEMIC Semiconductors – Quasi-Split Sound Circuit and AM Demodulator

U4488B
Electrical Characteristics (continued)
V_S = + 5 V, T_amb = + 25°C; reference point Pin 13, unless otherwise specified
Parameters
Test Conditions / Pins Symbol Min. Typ. Max.
Intercarrier output
(Pin 12)
(see note 4)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _{DC output voltage}
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _{Output resistance}
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _{Intercarrier output signal}
(See note 1)
v_in = 10 mV
5.5 MHz output signal
V_DC
2
R_out
200
V_out
100 150
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Intercarrier bandwidth
–1 dB
B
tbd
–3 dB
tbd
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _{Weighted signal-to-noise ratio}
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _{(CCIR 468)}
B/G mod. VIF signal:
v_in = 10 mV;
FM dev. = ±27 kHz;
f_mod = 1 kHz;
tested with U2860B;
Black screen: Channel 1/2
Color bar: Channel 1/2
60/58
58/56
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Ripple rejection
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _{Allowable AC output peak}
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _current
Tested from Pin 14 to 12
(see note 1)
RR
35
I_AC
" 0.7
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _{Allowable DC output current}
I_DC
–2
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _{AF output – AM}
(Pin 6)
(see note 5)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ DC output voltage
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ^{Output resistance}
AF output signal
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _{AF bandwidth}
(See note 1)
m = 54%
–3 dB
V_DC
R_out
v_oAF
B
2.2
150
500
tbd
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _{Total harmonic distortion}
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _{Weighted signal-to -oise ratio}
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ^{(CCIR 468)}
Ripple rejection
m = 54%
f_mod = 1 kHz, 12.5 kHz
Reference: m = 54%;
f_mod = 1 kHz
Tested from Pin 14 to 6
THD
1
2
S/N
56
RR
28
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _{(see note 1)}
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _{Allowable AC output peak}
I_AC
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _current
" 0.3
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Allowable DC output current
I_DC
–1
Unit
V
W
mV_rms
MHz
MHz
dB
dB
dB
mA
mA
V
W
mV_rms
kHz
%
dB
dB
mA
mA
Notes
1. This parameter is given as an application information and is not tested during production
2. The oscillator drift is related to the picture carrier frequency, with external temperature compensated LC circuit
3. Without external control voltage (Pin 7 open), the IC automatically operates in mode 1
4. Picture carrier PC = 38.9 MHz; sound carrier SC₁ = 33.4 MHz, SC₂ = 33.16 MHz;
PC/SC₁ =13 dB; PC/SC₂ = 20 dB; PC unmodulated (equivalent to sync peak level)
5. Sound carrier SC = 32.4 MHz, modulated with f_mod = 1 kHz, m = 54%; v_in = 10 mV
TELEFUNKEN Semiconductors
5 (9)
Rev. A2, 15-Jan-98
Preliminary Information