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TDA8745 Datasheet(PDF) 11 Page - NXP Semiconductors |
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TDA8745 Datasheet(HTML) 11 Page - NXP Semiconductors |
11 / 40 page 1996 Mar 11 11 Philips Semiconductors Preliminary specification Satellite sound receiver with I2C-bus control TDA8745 I2C-BUS PROTOCOL Table 1 Slave receiver/transmitter address: D4 or D6 (HEX) Notes 1. AS bit defined by level at address select (pin 12); 0 V = logic 0; 5 V = logic 1. 2. R/W = 0; TDA8745 is receiver (microcontroller is master transmitter). R/W = 1; TDA8745 is transmitter (microcontroller is master receiver). TDA8745 receiver use In the receiver mode the device has four subaddresses with auto-increment, as shown in Tables 2 to 5. Table 2 Input byte SA: 00; situation after POR Table 3 Tuning byte SA: 01; situation after POR Table 4 Select byte SA: 02; situation after POR Table 5 Audio byte SA: 03; situation after POR TDA8745 transmitter use No subaddress. Table 6 Read byte BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0 110101 AS(1) R/W(2) IL2 i7 IL1 i6 IL0 i5 IR2 i4 IR1 i3 IR0 i2 TUN9 i1 TUN8 i0 00000110 TUN7 t7 TUN6 t6 TUN5 t5 TUN4 t4 TUN3 t3 TUN2 t2 TUN1 t1 TUN0 t0 11101100 TEST s7 BB s6 OS1 s5 OS0 s4 PDM s3 PE s2 OML s1 OMR s0 00000011 LEV3 a7 LEV2 a6 LEV1 a5 LEV0 a4 NR a3 DEM1 a2 DEM0 a1 BPFN a0 11001110 PDL r7 PDR r6 − r5 − r4 − r3 − r2 − r1 POR r0 0 or 1 0 or 1 11111 0 or 1 |
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