tea5767hn NXP Semiconductors, tea5767hn Datasheet - Page 8

• Manufacturer Part Number: tea5767hn
• Description: Low-power Fm Stereo Radio For Handheld Applications
• Manufacturer: NXP Semiconductors

NXP Semiconductors
TEA5767HN_5
Product data sheet
7.13 Signal dependent mono to stereo blend
7.14 Signal dependent AF response
7.15 Software programmable ports
7.16 I
With a decreasing RF input level the MPX decoder blends from stereo to mono to limit the
output noise. The continuous mono to stereo blend can also be programmed via the bus
to an RF level depending switched mono to stereo transition. Stereo Noise Cancelling
(SNC) can be switched off via the bus.
The audio bandwidth will be reduced with a decreasing RF input level. This function can
be switched off via the bus.
Two software programmable ports (open-collector) can be addressed via the bus.
The port 1 (pin SWPORT1) function can be changed with write data byte 4 bit 0
(see
The 3-wire bus and the I
Before any READ or WRITE operation the pin BUSENABLE has to be HIGH for at
least 10 s.
The I
the 3-wire bus mode is selected.
2
C-bus and 3-wire bus
Table
2
C-bus mode is selected when pin BUSMODE is LOW, when pin BUSMODE is HIGH
13). Pin SWPORT1 is then output for the ready flag of read byte 1.
Rev. 05 — 26 January 2007
2
C-bus operate with a maximum clock frequency of 400 kHz.
Low-power FM stereo radio for handheld applications
TEA5767HN
© NXP B.V. 2007. All rights reserved.
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