Philips TEA5768HL, Техническое описание

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2004 Sep 13 11
Philips Semiconductors Product specification
Low-power FM stereo radio for
handheld applications
TEA5768HL
Table 11 Search stop level setting
Table 12 Format of 4th data byte
Table 13 Description of 4th data byte bits
Table 14 Format of 5th data byte
Table 15 Description of 5th data byte bits
SSL1 SSL0 SEARCH STOP LEVEL
0 0 not allowed in search mode
0 1 low; level ADC output = 5
1 0 mid; level ADC output = 7
1 1 high; level ADC output = 10
BIT 7 (MSB) BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0 (LSB)
SWP2 STBY BL XTAL SMUTE HCC SNC SI
BIT SYMBOL DESCRIPTION
7 SWP2 Software programmable port 2: if SWP2 = 1 then port 2 is HIGH; if SWP2 = 0 then
port 2 is LOW
6 STBY Standby: if STBY = 1 then in standby mode; if STBY = 0 then not in standby mode
5 BL Band Limits: if BL = 1 then Japanese FM band; if BL = 0 then US/Europe FM band
4 XTAL if XTAL = 1 then f
xtal
= 32.768 kHz; if XTAL = 0 then f
xtal
= 13 MHz
3 SMUTE Soft MUTE: if SMUTE = 1 then soft mute is ON; if SMUTE = 0 then soft mute is OFF
2 HCC High Cut Control: if HCC = 1 then high cut control is ON; if HCC = 0 then high cut
control is OFF
1 SNC Stereo Noise Cancelling: if SNC = 1 then stereo noise cancelling is ON; if SNC = 0
then stereo noise cancelling is OFF
0 SI Search Indicator: if SI = 1 then pin SWPORT1 is output for the ready flag; if SI = 0 then
pin SWPORT1 is software programmable port 1
BIT 7 (MSB) BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0 (LSB)
PLLREF DTC
− − − − − −
BIT SYMBOL DESCRIPTION
7 PLLREF if PLLREF = 1 then the 6.5 MHz reference frequency for the PLL is enabled;
if PLLREF = 0 then the 6.5 MHz reference frequency for the PLL is disabled
6 DTC if DTC = 1 then the de-emphasis time constant is 75
µ
s; if DTC = 0 then the
de-emphasis time constant is 50
µ
s
5 to 0
−
not used; position is don’t care