tea5777hn-n2 NXP Semiconductors, tea5777hn-n2 Datasheet - Page 15

• Manufacturer Part Number: tea5777hn-n2
• Description: Tea5777 Low-power Am/fm Stereo Radio For Handheld Applications
• Manufacturer: NXP Semiconductors

Philips Semiconductors
9. Control functions via I
TEA5777_1
Product data sheet
9.1 Bus interface
9.2 Bus protocol
Via the bus interface a couple of main blocks are controlled:
The TEA5777 bus interface is a combination of an I
mode is determined by the bus mode input pin BUSMODE which will be connected to
ground or to V
Fig 4. Bus interface
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Tuning system
Autonomous search
AM capacitor bank (C-bank control)
IF counter
4-bit level ADC
Stereo decoder
Mute and de-emphasis
SWPORT1 and SWPORT2 outputs (I/O port control)
Pin BUSMODE = HIGH enables the 3-wire mode
Pin BUSMODE = LOW enables I
CCD
2
C-bus and 3-wire bus
:
Rev. 01 — 11 April 2006
Low-power AM/FM stereo radio for handheld applications
3-WIRE BUS OR
AUTONOMOUS
DE-EMPHASIS
INTERFACE
DECODER
STEREO
SEARCH
I
2
MUTE
C-BUS
2
C-bus mode
BUS INTERFACE
LEVEL ADC
IF COUNTER
2
CONTROL
CONTROL
I/O PORT
SYSTEM
C-bus and a 3-wire-bus. The bus
TUNING
C-BANK
001aab436
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
TEA5777
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