U4062B

U4062B HF Front End for Car Radios and HiFi Receivers Description Technology: Bipolar Features D Completely integrated FM front end increases quality level and reliability D Oscillator with low phase noise and excellent frequency stability D High performance due to three AGC loops allow extreme large signal handling D Fulfils FTZ rules D Double-balanced high linear mixer with low-noise figure D IF preamplifier with dB-linear gain control D Low noise and high stability of the reference voltage circuit for internal and auxiliary functions Block Diagram 16 14 4 2 13 12 15 3 10 1 18 9 8 7 11 5 6 17 Figure 1. Block diagram Ordering Information Extended Type Number U4062B-B Package DIP18 Remarks Rev. A1, 07-Dec-98 1 (21) U4062B Pin Description Oscout VS IFout GND Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Symbol Oscout VS IFout GND MIXin VRef C BRF E AGCout GND MIXout MIXout AGCin IFin AGC BOsc EOsc Function Oscillator output Supply voltage IF output Ground Mixer input Reference voltage output Collector Base, RF preamplifier Emitter AGC output Ground Mixer output Mixer output AGC input (IF strip) IF input / IF gain control AGC time constant Base oscillator Emitter oscillator 1 2 3 4 18 EOsc 17 BOsc 16 AGC 15 IFin 14 13 12 11 10 14928 MIXin 5 VRef C 6 7 AGCin MIXout MIXout GND AGCout BRF 8 E 9 Figure 2. Pinning DIP18 Absolute Maximum Ratings Reference point ground, Pins 4 and 11 Parameters Supply voltage Pins 2, 12 and 13 Power dissipation Tamb = 85°C Junction temperature Storage temperature range Ambient temperature range Symbol VS Ptot Tj Tstg Tamb Value 18 450 125 –50 to +125 –25 to +85 Unit V mW °C °C °C Thermal Resistance Parameters Junction ambient Symbol RthJA Value 90 Unit K/W 2 (21) Rev. A1, 07-Dec-98 U4062B Electrical Characteristics VS = 10 V, fiRF = 50.3 MHz, fOsc 100 MHz, fIF = fOsc – fiRF 49.7 MHz, reference point Pins 4 and 11, Tamb = +25°C, unless otherwise specified, see test circuit figure 4. Parameters Test Conditions / Pins Supply voltage range Supply currents Supply current Pin 2 Mixer Pins 12 and 13 RF stage R4 = 470 W Pin 7 RF preamplifier (Rg9 = 50 W, RL7 = 200 W) DC voltage Pin 7 Pin 8 Symbol VS IS I12 + I13 I7 V7 V8 Min. 7 Typ. Max. 16 Unit V mA mA mA V V dB dBm 5 1 3 3.8 2 3.2 2.5 100 130 1.3 2 5 10.5 4.2 160 [ [ 11.5 9 9 5.7 0.77 10.5 12 Power gain GRF Third order intercept IP3 Dynamic characteristics, f = 100 MHz Input impedance Z9 Forward current gain | i7/i9 | hfb Parallel output resistance R7 Parallel output capacitance C1 Noise figure NFRF Oscillator (fOsc = 100 MHz, unloaded Q = 80, resonance resistance Rg17 = 250 W) DC voltage Pin 17 V17 Pin 18 Oscillator voltage Frequency drift Pin 17 By supply voltage change dfo/dVS By temperature change dfo/dK Frequency band 300 Hz to 20 kHz, unweighted Peak CCIR V18 VOsc17 W A/A kW pF dB V V mV kHz/V kHz/K Hz Hz Hz Hz DfOsc(VS) DfOsc(Tj) Dfnoise Dfnoise Dfnoise DfOsc (ViRF) I1 V1 Gbuffer Z1 FM noise equivalent deviation, (Ripple voltage < 0.5 mV) Peak CCIR, weighted with 75 ms, deemphasis FM by AM signal at mixer fiRF = 90 MHz, m = 0.8, input fM = 1 kHz, ViRF = 106 dBmV Oscillator output buffer (RL1 = 520 W) DC current load limitation Pin 1 DC voltage Pin 1 Voltage gain VOsc17 200 mV Pin 1 VOsc1/VOsc17 Harmonics Output impedance Pin 1 0.2 1.7 0.86