Philips TEA5880TS - Manual (Page 10)

9397 750 13022 © Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Preliminary data sheet Rev. 02 — 26 April 2004 10 of 27
Philips Semiconductors
TEA5880TS
Integrated FM stereo radio IC for host processor tuning
[1] The frequency is decreased when increasing the content of this register.
Table 9: CTRL_A - (address 2h) bit description
Bit Symbol Description
14 to 11 - address bits
10 to 7 OUTPUT_
SELECT[3:0] selects an internal circuit as output for measurement purpose;
see
Table 10
6 STE_PMUTE mutes the stereo PLL when set to logic 1; this bit should be
set during calibration of the stereo decoder clock and should be
cleared during normal operation
5 DEM_PMUTE mutes the demodulator PLL when set to logic 1; this bit
should be set during calibration of the IF frequency and should
be cleared during normal operation
4 STE_INT_OFF# turns off the stereo integrator loop when set to logic 0
3 EN_MEAS# enables measurement when set to logic 0
2 AMUTE mutes the audio when set to logic 1
1 FM enables the FM circuitry when set to logic 1
0 - reserved for AM circuitry; should be written to logic 0
Table 10: Description of OUTPUT_SELECT bits
Symbol Value Decimal Output selected
OS-NONE 0000b 0 no output selected
OS_FM_OSC 0001b 1 FM oscillator
OS_NA2 0010b 2 not defined
OS_CNT2_RDY_NA 0011b 3 reserved for counter 2 ready output
OS_NA4 0100b 4 not defined
OS_STEREO_DEC 0101b 5 stereo decoder clock
OS_NA6 0110b 6 not defined
OS_STEREO_LED 0111b 7 stereo LED
OS_NA8 1000b 8 not defined
OS_IF_OSC 1001b 9 IF oscillator
OS_INTERRUPT_NA 1010b 10 reserved for interrupt output
OS_PISO 1011b 11 PISO output (reading STATUS / COUNTER
register)
OS_NA12 1100b 12 not defined
OS_RDS_NA 1101b 13 reserved for RDS output
OS_NA14 1110b 14 not defined
OS_NA15 1111b 15 not defined
Table 11: OSC_STEREO - (address 3h) bit description [1]
Bit Symbol Description
14 to 11 - address bits
10 to 0 SO[10:0] 11-bit digital-to-analog converter for adjusting the stereo decoder clock