U4454B Datasheet, PDF (2/7 Pages) TEMIC Semiconductors – Quasi-Split-Sound Processing and AM-Demodulator

U4454B
Pin Description
IF_in 1
NC 2
NC ₃
GND ₄
C₅ 5
V_out 6
C_{7 7}
V_{VCO 8}
16 IF_in
15 GND
14 ^VS
13 ^CRef
12 LF
11 LF
10 ^GND
9 ^VVCO
95 11256
Pin Symbol
Function
1 IF_in IF input
2 NC Not connected
3 NC Not connected
4 GND Ground
5
C₅ IF-AGC time constant
6 V_out Output for AM (audio frequency) or
FM (intercarrier frequency)
7
C₇ Averaging value (IF-AGC function)
8 V_VCO VCO circuit
9 V_VCO VCO circuit
10 GND Ground
11 LF PLL loop filter
12 LD PLL time constant switch
13 C_Ref Reference voltage (internal use only)
14 V_S Supply voltage
15 GND Ground
16 IF_in IF input
Absolute Maximum Ratings
Reference point Pin 4, unless otherwise specified
Parameters
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _{Supply voltage}
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _{Supply current}
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _{Output current}
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _{Maximum power dissipation}
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _{Junction temperature}
Pin 14
Pin 14
Pin 6
Symbol
Value
Unit
V_s
6.8 to 13.0
V
I_S
55
mA
I_out
5.0
mA
P
720
mW
T_j
+125
°C
Thermal Resistance
ÁÁÁÁ_{JASuÁÁÁÁtmonrcbatiÁÁÁÁigeoennttÁÁÁÁeatemmmpbÁÁÁÁpeieernarattÁÁÁÁuturereÁÁÁÁ}^P_{ÁÁÁÁ}^ara_{ÁÁÁÁ}^met_{ÁÁÁÁ}^ersn_{ÁÁÁÁoteÁÁÁÁ1 ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ}^SRyTTm_{taÁÁÁÁhsmtJ}^b_gAb^o_{ÁÁÁÁ}^l _{ÁÁÁÁÁÁÁÁÁÁÁÁ––2255VÁÁÁÁta6tool0u+ÁÁÁÁ+e18255ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁKU°°ÁÁÁÁ/nCCWit ÁÁÁÁÁÁÁÁ}
2 (7)
TELEFUNKEN Semiconductors
Preliminary Information
Rev. A1, 23-Feb-96