TEA6821T Datasheet, PDF (28/47 Pages) NXP Semiconductors – ICE car radio

Philips Semiconductors
ICE car radio
Preliminary specification
TEA6821T
General specification
bus address of the TEA6821T
subaddress
hardware (pin) programmable address bits
default settings by power-on reset
1100 001X
not used
not available
radio mute and 40 ms IF count time is enabled,
all other bits are random
I²C-bus data
Data to be received by the IC
data byte 1
data byte 2
bit 0 switch for mono: bit 0 = 1; stereo: bit 0 = 0
bit 1 LSB reference frequency for synthesizer; see Table 1
bit 2 reference frequency for synthesizer; see Table 1
bit 3 MSB reference frequency for synthesizer; see Table 1
bit 4 tuning mute, bit 4 = 1: off; bit 4 = 0: on
bit 5 SDS/SDR hold, bit 5 = 1: off; bit 5 = 0: on
bit 6 radio mute, bit 6 = 1: off; bit 6 = 0: on
bit 7 I²C-bus to front end, bit 7 = 1: enabled; bit 7 = 0: disabled
bit 0 AM/FM, bit 0 = 0: AM; bit 0 = 1: FM
bit 1 divider for AM mixer, bit 1 = 0: division by 2; bit 1 = 1: division by 6
bit 2 measure time IF count, bit 2 = 0: 40 ms; bit 2 = 1: 4 ms
bit 3 SDR off, bit 3 = 0: SDR off; bit 3 = 1: SDR on
bit 4 not used
bit 5 not used
bit 6 not used
bit 7 not used
Data to be transmitted by the IC
data byte 1⁽¹⁾ bit 0 LSB level information
bit 1 level information
bit 2 MSB level information
bit 3 LSB multipath information
bit 4 multipath information
bit 5 MSB multipath information
bit 6 bit 6 = 1: stereo pilot presence
bit 7 not used
September 1993
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