Datasheet

TEF6901A_3 © NXP B.V. 2008. All rights reserved.
Product data sheet Rev. 03 — 20 March 2008 36 of 107
NXP Semiconductors
TEF6901A
Integrated car radio
8.2.3 Write mode: data bytes PLLM and PLLL
8.2.4 Write mode: data byte DAA
Table 29. PLLM - format of data byte 01h with default setting (buffered)
7 6 5 4 3 2 1 0
RFGAIN PLL14 PLL13 PLL12 PLL11 PLL10 PLL9 PLL8
00001000
Table 30. PLLL - format of data byte 02h with default setting (buffered)
7 6 5 4 3 2 1 0
PLL7 PLL6 PLL5 PLL4 PLL3 PLL2 PLL1 PLL0
01111110
Table 31. PLLM and PLLL - data byte 01h and data byte 02h bit description
Bit Symbol Description
7 (PLLM) RFGAIN RF gain setting in FM mode
0 = standard RF gain
1 = +6 dB additional RF gain at FM mixer 1
6to0
(PLLM)
7to0
(PLLL)
PLL[14:0] VCO programmable divider N; application range of N = 1024 to 32767;
see
Section 8.2.7
Table 32. DAA - format of data byte 03h with default setting (buffered)
7 6 5 4 3 2 1 0
0 DAA6 DAA5 DAA4 DAA3 DAA2 DAA1 DAA0
1000000
Table 33. DAA - data byte 03h bit description
Bit Symbol Description
7 - reserved; 0 = normal operation
6 to 0 DAA[6:0] RF selectivity alignment
FM: alignment of antenna circuit tuning voltage
(0.1 × V
VCO
to 2.0 × V
VCO
)
AM: voltage Digital-to-Analog Converter (DAC) output
(0.1 × 4.3 V to 2.0 × 4.3 V)