TDA4360X

Dual Conversion AM Receiver TDA 4360X 1 1.1 Overview Features High flexibility with an external preamplifier stage Sym. or asym. mixer input 2-pin oscillator for the 1. LO 1. LO with LC tank circuit 1. LO at 100 MHz range P-DSO-28-1 Low narrow band noise Divider for 1. LO by 10 for the 100 kHz … 2 MHz range and by 8 for the 2 MHz … 6 MHz range Integrated AGC generation Strictly symmetrical RF path Decoupled counter output 2. LO with quartz or external source Output for gain controlled 2. IF Switchable AGC time constant Ordering Code Q67000-A5181 Package P-DSO-28-1 Type TDA 4360X 1.2 Application The TDA 4360X is an integrated dual conversion AM receiver for use in car radios. The input signal passes a linear mixer for conversion into the 1. IF (~ 10 MHz). Via an external bandpass filter (CER filter, quartz filter) the 1. IF is converted in a second linear mixer to the 2. IF (~ 460 kHz). After an external narrowband selectivity (CER filter) the 2. IF passes an automatic gain controlled (AGC) amplifier and is then demodulated to the AF. The AGC time constant can be switched with a ratio of 20. For counter controlled search tuning stop (STS) the frequencies of the 1. LO and the 2. IF are available. Semiconductor Group 1 04.96 TDA 4360X 1.3 Pin Configuration (top view) P-DSO-28-1 Figure 1 Semiconductor Group 2 04.96 TDA 4360X 1.4 Pin No. 1, 2 Pin Definitions and Functions Function Sym. Input for the AM signal in the frequency range of 1...