Philips TEA5767HN, X7, X5 DATA SHEET

INTEGRATED CIRCUITS

DATA SH EET

TEA5767HN

Low-power FM stereo radio for
handheld applications

Preliminary specification 2002 Mar 12

Philips Semiconductors Preliminary specification

Low-power FM stereo radio for handheld applications TEA5767HN

FEATURES

• High sensitivity due to integrated low-noise RF input
amplifier

• FM mixer for conversion of the US/Europe
(87.5 to 108 MHz) and Japanese FM band
(76 to 91MHz) to IF

• Preset tuning to receive Japanese TV audio up to
108 MHz

• RF Automatic Gain Control (AGC) circuit

• LC tuner oscillator operating with low cost fixed chip

inductors

• FM IF selectivity completely done internal

• No externaldiscriminatorneeded due to fully integrated

FM demodulator

• Crystal reference frequency oscillator; the oscillator
operates with a 32.768 kHz clock crystal or with a
13 MHz crystal and with an externally applied 6.5 MHz
reference frequency

• PLL synthesizer tuning system

• 7-bit IF counter output via bus

• 4-bit level information output via bus

• Soft mute

• Signal dependent mono/stereo blend [Stereo Noise

Cancelling (SNC)]

• Signal dependent High Cut Control (HCC)

• Soft mute, SNC and HCC can be switched off via bus

• Adjustment-free stereo decoder

• I2C-bus and 3-wire bus, selectable via pin BUSMODE

• Autonomous search tuning function

• Standby mode

• Two software programmable ports

• Bus enable line to switch bus input and output lines into

3-state mode

• Automotive temperature range (at V
and V

CCD

= 5 V).

CCA

, V

CC(VCO)

GENERAL DESCRIPTION

The TEA5767HN is a single-chip electronically tuned FM
stereoradiofor low-voltage application withfullyintegrated
IF selectivity and demodulation. The radio is completely
adjustment-free and does only requirea minimumof small
and low cost externalcomponents. The radio can tune the
European, US and Japan FM bands.

ORDERING INFORMATION

TYPE

NUMBER

NAME DESCRIPTION VERSION

PACKAGE

TEA5767HN HVQFN40 plastic, heatsink very thin quad flat package; no leads; 40 terminals;

body 6 × 6 × 0.85 mm

2002 Mar 12 2

SOT618-1

Philips Semiconductors Preliminary specification

Low-power FM stereo radio for handheld applications TEA5767HN

QUICK REFERENCE DATA

V

CCA=VCC(VCO)=VCCD

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

V

CCA

V

CC(VCO)

analog supply voltage 2.5 3.0 5.0 V
voltage controlled oscillator

supply voltage

V

CCD

I

CCA

I

CC(VCO)

digital supply voltage 2.5 3.0 5.0 V
analog supply current operational; V

voltage controlled oscillator
supply current

I

CCD

f

FM(ant)

T

amb

digital supply current operational; V

FM input frequency 76 − 108 MHz
ambient temperature V

FM overall system parameters; see Fig.7
V

S
S

RF

−200
+200

RF sensitivity input voltage fRF= 76 to 108 MHz; ∆f = 22.5 kHz;

LOW side 200 kHz selectivity ∆f=−200 kHz; fRF= 76 to 108 MHz; note 1 32 36 − dB
HIGH side 200 kHz

selectivity

V

AFL

; V

left and right audio frequency

AFR

output voltage

(S+N)/N maximum signal plus

noise-to-noise ratio

α

cs(stereo)

stereo channel separation VRF= 1 mV; R=L=0 or R=0 and L = 1

THD total harmonic distortion VRF= 1 mV;L = R; ∆f = 75 kHz;f

.

2.5 3.0 5.0 V

= 3 V 6.0 8.4 10.5 mA

CCA

standby mode; V
operational; V

VCOTANK1=VVCOTANK2

standby mode; V

CCD

standby mode; V

=3V − 36 µA

CCA

= 3 V 560 750 940 µA

VCOTANK1=VVCOTANK2

=3V − 12 µA

= 3 V 2.1 3.0 3.9 mA

=3V

CCD

bus enable line HIGH 30 56 80 µA
bus enable line LOW 11 19 26 µA

CCA=VCC(VCO)=VCCD

V

CCA=VCC(VCO)=VCCD

= 2.5 V −10 − +75 °C
=5V −40 − +85 °C

− 2 3.5 µV

f

= 1 kHz; (S+N)/N = 26 dB;

mod

de-emphasis = 75 µs; L = R;
BAF = 300 Hz to 15 kHz

∆f = +200 kHz; fRF= 76 to 108 MHz; note 1 39 43 − dB

VRF= 1 mV; L = R; ∆f = 22.5 kHz;
f

= 1 kHz; de-emphasis = 75 µs

mod

VRF= 1 mV; L = R; ∆f = 22.5 kHz;
f

= 1 kHz; de-emphasis = 75 µs;

mod

60 75 90 mV

54 60 − dB

BAF = 300 Hz to 15 kHz

24 30 − dB

including 9% pilot; ∆f = 75 kHz; f

mod

= 1 kHz;

data byte 3: bit 3 = 0; data byte 4: bit 1 = 1

mod

= 1 kHz;

− 0.4 1 %

de-emphasis = 75 µs

Note

1. LOWside and HIGH side selectivitycan be switchedby changing themixer from HIGHside to LOWside LO injection.

2002 Mar 12 3

Philips Semiconductors Preliminary specification

Low-power FM stereo radio for handheld applications TEA5767HN

BLOCK DIAGRAM

CCA

V

32.768 kHz

or

(1)

pull

C

16

CRYSTAL

OSCILLATOR

13 MHz

10 kΩ

10 kΩ

15

14

pilot

PORT

SOFTWARE

PROGRAMMABLE

MUX

BUSENABLE

BUSMODE

WRITE/READ

13

12

11

mono

C-BUS

2

I

3-WIRE BUS

10

n.c.

CLOCK

22 nF

7

DATA

12 Ω

n.c

AFL

V

AFR

V

MPXO

33

47

33 nF

nFnF

22 nF

(1)

comp

22 nF

18

33 kΩ

C

17

n.c.

1 nF

20

21

19
22
2324252628

SDS

MPX

DECODER

SOFT

MUTE

ref

POWER

SUPPLY

I

27

TEA5767HN

DEMODULATOR

IF COUNTER

n.c

47 nF

47 nF

CCD

V

Fig.1 Block diagram.

29

LIMITER

GAIN

AMPLIFIER

STABILISATOR

RESONANCE

30

31

32

n.c.

33

R1

34

22 µF

22 nF

4.7 Ω

CCA

V

ADC

LEVEL

: 2

1st FM

I/Q-MIXER

FM antenna

ADJUST

IF CENTRE

FREQUENCY

N1

35

27 pF

100 pF

programmable divider output

reference frequency divider output

22 nF

AGC

TUNING SYSTEM

37

36

38

39

4.7 nF

47 pF

L1

VCO

2345689
1

40

n.c.

39 nF

n.c.

10

10 nF

D1 D2

L3 L2

100

kΩ

kΩ

47 Ω

data depends on crystal specification.

pull

CC(VCO)

and C

V

comp

(1) C

2002 Mar 12 4

Philips Semiconductors Preliminary specification

Low-power FM stereo radio for handheld applications TEA5767HN

Table 1 Component list for Figs 1 and 7

COMPONENT PARAMETER VALUE TOLERANCE TYPE MANUFACTURER

R1 resistor with low temperature coefficient 18 kΩ±1% RC12G Philips
D1 and D2 varicap for VCO tuning −−BB202 Philips
L1 RF band filter coil 120 nH ±2% Q
L2 and L3 VCO coil 33 nH ±2% Q
XTAL13 13 MHz crystal −−NX4025GA
C

pull

pulling capacitor for NX4025GA 10 pF −

XTAL32.768 32.768 kHz crystal −−

PINNING

SYMBOL PIN DESCRIPTION

n.c. 1 not connected
CPOUT 2 charge pump output of synthesizer PLL
VCOTANK1 3 voltage controlled oscillator tuned circuit output 1
VCOTANK2 4 voltage controlled oscillator tuned circuit output 2
V

CC(VCO)

5 voltage controlled oscillator supply voltage
DGND 6 digital ground
V

CCD

7 digital supply voltage
DATA 8 bus data line input/output
CLOCK 9 bus-clock line input
n.c. 10 not connected
WRITE/READ 11 write/read control input for the 3-wire bus
BUSMODE 12 bus mode select input
BUSENABLE 13 bus enable input
SWPORT1 14 software programmable port 1
SWPORT2 15 software programmable port 2
XTAL1 16 crystal oscillator input1
XTAL2 17 crystal oscillator input2
PHASEFIL 18 phase detector loop filter
PILFIL 19 pilot detector low-pass filter
n.c. 20 not connected
n.c. 21 not connected
V
V

AFL
AFR

22 left audio frequency output voltage

23 right audio frequency output voltage
TMUTE 24 time constant for soft mute
MPXO 25 FM demodulator MPX signal output
V

ref

26 reference voltage
TIFC 27 time constant for IF centre adjust
LIMDEC1 28 decoupling IF limiter 1
LIMDEC2 29 decoupling IF limiter 2

min
min

=40
=40

2002 Mar 12 5

Philips Semiconductors Preliminary specification

Low-power FM stereo radio for handheld applications TEA5767HN

SYMBOL PIN DESCRIPTION

n.c. 30 not connected
n.c. 31 not connected
I

gain

AGND 33 analog ground
V

CCA

RFI1 35 RF input 1
RFGND 36 RF ground
RFI2 37 RF input 2
TAGC 38 time constant RF AGC
LOOPSW 39 switch output of synthesizer PLL loop filter
n.c. 40 not connected

32 gain control current for IF filter

34 analog supply voltage

n.c.

CLOCK

DATA

V

CCD

DGND

V

CC(VCO)

VCOTANK2
VCOTANK1

CPOUT

n.c.

XTAL2

SWPORT2

XTAL1

SWPORT1

10

9
8
7
6
5
4
3
2
1

BUSMODE

BUSENABLE

WRITE/READ

13

12

11

TEA5767HN

38

39

40

n.c.

TAGC

LOOPSW

37

RFI2

161418

15

36

35

RFI1

RFGND

17

34

CCA

V

n.c.

PILFIL

PHASEFIL

20

19

31

33

32

n.c.

gain

I

AGND

21
22
23
24
25
26
27
28
29
30

MXXxxx

Fig.2 Pin configuration (bottom view).

n.c.
V

AFL

V

AFR

TMUTE
MPXO
V

ref

TIFC
LIMDEC1
LIMDEC2
n.c.

2002 Mar 12 6

Philips Semiconductors Preliminary specification

Low-power FM stereo radio for handheld applications TEA5767HN

FUNCTIONAL DESCRIPTION
Low-noise RF amplifier

The LNA input impedance together with the LC RF input
circuit defines an FM band filter. The gain of the LNA is
controlled by the RF AGC circuit.

FM mixer

FM quadrature mixer converts FM RF (76 to 108 MHz) to
an IF of 225 kHz.

VCO

The varactor tuned LC VCO provides the Local Oscillator
(LO) signal for the FM quadrature mixer. The VCO
frequency range is 150 to 217 MHz.

Crystal oscillator

The crystal oscillator can operate with a 32.768 kHz clock
crystal or a 13 MHz crystal. The temperature drift of
standard 32.768 kHz clock crystals limits the operational
temperature range from −10 to +60 °C.

Via pin XTAL2 the PLL synthesizer can be clocked
externally with a 32.768 kHz, a 6.5 MHz or a 13 MHz
signal.

The crystal oscillator generates the reference frequency
for

• The reference frequency divider for synthesizer PLL

• The timing for the IF counter

• The free-running frequencyadjust of the stereo decoder

VCO

• The centre frequency adjust of the IF filters.

PLL tuning system

The PLL synthesizer tuning system is suitable to operate
with a 32.768 kHz or a 13 MHz reference frequency
generated by the crystal oscillator or fed into the IC. The
synthesizer can also be clocked via pin XTAL2 with

6.5 MHz. The PLL tuning system can perform an
autonomous search tuning function.

FM demodulator

The FM quadrature demodulator has an integrated
resonator to perform the phase shift of the IF signal.

Level voltage generator and analog-to-digital
converter

The level voltage is analog-to-digital converted with 4 bits
and output via the bus.

IF counter

The IF counter outputs a 7-bit count result via the bus.

Soft mute

The low-pass filtered level voltage drives the soft mute
attenuator at low RF input levels. The soft mute function
can also be switched off via bus.

MPX decoder

The PLL stereo decoder is adjustment-free. The stereo
decoder can be switched to mono via bus.

Signal dependent mono/stereo blend

With 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 by bus to an RF level depending switched
mono-to-stereo transition. Stereo Noise Cancelling (SNC)
can be switched off via bus.

Signal dependent AF response

With decreasing RF input level the audio bandwidth is
reduced. The function can also be switched off via bus.

Software programmable ports

Two software programmableports (open-collector) canbe
addressed via bus.

With write data byte 4 bit 0 the port 1 (pin SWPORT1)
functioncanbe changed (see Table 14).Pin SWPORT1is
then output for the ready flag of read byte 1.

RF AGC

The RF AGC prevents overloading and limits the amount
of intermodulation products created by strong adjacent
channels.

IF filter

Fully integrated IF filter.

2002 Mar 12 7

2

C-bus and 3-wire bus

I

The 3-wire bus operates with a maximum clock frequency
of 1 MHz.

The I2C-bus operates with a maximum clock frequency of
400 kHz.

Philips Semiconductors Preliminary specification

Low-power FM stereo radio for handheld applications TEA5767HN

With BUSMODE pin LOW the I2C-bus mode is selected,
withBUSMODE pinHIGH the 3-wirebus mode isselected.

2

C-BUS, 3-WIRE BUS AND BUS CONTROLLED

I
FUNCTIONS

2

C-bus specification

I

Informationaboutthe I2C-buscanbe found inthebrochure

“The I2C-bus and how to use it”

(order number

9398 393 40011).

2

The standard I

C-bus specification is expanded by the

following definitions.
IC address C0: 1100000.
Structure of the I2C-bus logic: slave transceiver.
Subaddresses are not used.
The maximum LOW-level input and the minimum

HIGH-level input are specified to 0.2V

0.45V

CCD

.

respectively

CCD

The pin BUSMODE must be connected to ground to
operate the IC with the I2C-bus.

Hint: The bus operates at a maximum clock frequency of
400 kHz. It is not allowed to connect the IC to a bus
operating at a higher clock rate.

DATA TRANSFER FOR THE TEA5767HN
Data sequence: address, byte 1, byte 2, byte 3, byte 4,

and byte 5. The data transfer has to be in this order. The
LSB = 0of the addressindicates a WRITEoperationto the
TEA5767HN.

Bit 7 of each byte is considered the MSB and has to be
transferred as the first bit of the byte.

The data becomes valid bitwise at the appropriate falling
edge of the clock. A STOP condition after any byte can
shorten transmission times.

When writing to the transceiver by using the STOP
condition before completion of the whole transfer:

• The remaining bytes will contain the old information

• Ifthe transferof a byteis not completed,the new bitswill

be used, but a new tuning cycle will not be started.

Withthe standby bittheIC can beswitched in alowcurrent
standby mode. The bus is then still active. The standby
currentcan be reducedbydeactivation of thebusinterface
(pin BUSENABLE LOW). Is the bus interface deactivated
(pin BUSENABLE LOW) without programmed standby
mode, the IC keeps its normal operation, but is isolated
from the bus lines.

The software programmable output (SWPORT1) can be
programmed to operateas tuning indicator output. Aslong
as the IC has not completed a tuning action, the
SWPORT1 pin is LOW. The pin becomes HIGH, when a
preset or search tuning was completed or when a band
limit was reached.

With the MSB in byte 5 set to logic 1 the reference
frequency divider of the synthesizer PLL is changed. The
tuning system can then be clocked via pin XTAL2 with

6.5 MHz.

P

OWER-ON RESET

The mute is set, all other bits are set to LOW. To initialize
the IC all bytes have to be transferred.

2

C-bus protocol

I
Table 2 Write mode

(1)

S

address (write) A

Table 3 Read mode

(1)

S

address (read) A

Notes to Tables 2 and 3

1. S = START condition.

2. A = acknowledge.

3. P = STOP condition.

2002 Mar 12 8

(2)

(2)

data byte(s) A

data byte 1

(2)

(3)

P

Philips Semiconductors Preliminary specification

Low-power FM stereo radio for handheld applications TEA5767HN

Table 4 IC address byte

IC ADDRESS MODE

1100000R/W

Note

1. Read or write mode:
a) 0 = write operation to TEA5767HN
b) 1 = read operation from TEA5767HN.

(1)

3-wire bus specification

3-wire bus with write/read, clock and data line.
Thebus operatesat a maximumclock frequency of1 MHz.
Hint: With the standby bit the IC can be switched in a low

current standby mode. The bus is then still active. The
standby current can bereduced by deactivation of the bus
interface (pin BUSENABLE LOW). Is the bus interface
deactivated(pin BUSENABLE LOW) withoutprogrammed
standby mode, the IC keeps its normal operation, but is
isolated from the clock and data line.

DATA TRANSFER FOR THE TEA5767HN
Data sequence: byte 1, byte 2, byte 3, byte 4, and byte 5.

The data transfer has to be in this order.
A positive edge at pin WRITE/READ enables the data

transfer into the IC. Data have to be stable at the positive
edge of the clock. Data may change while clock is LOW
andis written withthepositive edge ofthe clock intotheIC.
Data transfer can be stopped after the transmission of a
newtuning information withthe first twobytesor after each
following byte.

A negative edge at pin WRITE/READ enables the data
transfer out of the IC. The WRITE/READ pin changes
while the clock is LOW. With the negative edge of
pin WRITE/READ the MSB of the first byte occurs at
pin DATA. The bits are shifted with the negative clock
edge to pin DATA and can be read with the positive edge.

To do two consecutive read or write actions,
pin WRITE/READ has to be toggled for at least one clock
period. Was a search tuning request sent, the IC
autonomously starts searching the FM band. Search
direction and search stop level can be chosen. Was a
stationwitha field-strength equaltoorhigher than this stop
level found, the tuning system stops and the ready flag bit
is set to HIGH. Was during search a band limit reached,
thetuning systemstops at theband limit and the bandlimit
flag bit is set to HIGH. Alsothe ready flag is set to HIGH in
this case.

The software programmable output (SWPORT1) can be
programmed to operate as a tuning indicator output. As
long as the IC has not completed a tuning action
pin SWPORT1 is LOW. The pin becomes HIGH, when a
preset or search tuning was completed or when a band
limit was reached.With the MSBin byte 5set to logic 1the
reference frequency divider of the synthesizer PLL is
changed. The tuning system can then be clocked via
pin XTAL2 with 6.5 MHz.

POWER-ON RESET
The mute is set, all other bits are random. To initialize the

IC all bytes have to be transferred.

2002 Mar 12 9

Philips Semiconductors Preliminary specification

Low-power FM stereo radio for handheld applications TEA5767HN

Writing data

t

W(write)tW(write)

WRITE/READ

CLOCK

DATA

50%

t

su(clk)

50%

t

su(write)

50%

50%

valid
data

t

h(write)

Fig.3 3-wire bus write data.

Table 5 Write mode

DATA BYTE 1 DATA BYTE 2 DATA BYTE 3 DATA BYTE 4 DATA BYTE 5

Table 6 Format of 1st data byte

BIT 7 (MSB) BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0 (LSB)

MUTE SM PLL13 PLL12 PLL11 PLL10 PLL9 PLL8

Table 7 Description of 1st data byte bits

BIT SYMBOL DESCRIPTION

7 MUTE If MUTE = 1, then L and R audio muted. If MUTE = 0, then audio not muted.
6SMSearch Mode. If SM = 1, then search mode. If SM = 0, then no search mode.

5 to 0 PLL[13:8] Setting of synthesizer programmable counter for search or preset.

Table 8 Format of 2nd data byte

BIT 7 (MSB) BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0 (LSB)

PLL7 PLL6 PLL5 PLL4 PLL3 PLL2 PLL1 PLL0

Table 9 Description of 2nd data byte bits

BIT SYMBOL DESCRIPTION

7 to 0 PLL[7:0] Setting of synthesizer programmable counter for search or preset.

Table 10 Format of 3rd data byte

BIT 7 (MSB) BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0 (LSB)

SUD SSL1 SSL0 HLSI MS ML MR SWP1

2002 Mar 12 10

Philips Semiconductors Preliminary specification

Low-power FM stereo radio for handheld applications TEA5767HN

Table 11 Description of 3rd data byte bits

BIT SYMBOL DESCRIPTION

7 SUD Search up/down. If SUD = 1, then search up. If SUD = 0, then search down.

6 and 5 SSL[1:0] Search Stop Level. See Table 12.

4 HLSI HIGH/LOW Side Injection. If HLSI = 1, then HIGH side LO injection. If HLSI = 0, then

LOW side LO injection.
3MSMono/Stereo. If MS = 1, then forced mono. If MS= 0, then stereo ON.
2MLMuteLeft. If ML = 1, then left audio channel mutedand forcedmono. If ML = 0, then not

muted.
1MRMute Right. If MR = 1, then right audio channel muted and forced mono.If MR = 0, then

not muted.
0 SWP1 Software programmable port 1. If SWP1 = 1, then port 1 is HIGH. If SWP1 = 0, then

port 1 is LOW.

Table 12 Search stop level setting

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

Table 13 Format of 4th data byte

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

Table 14 Description of 4th data byte bits

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 standby. If STBY = 0, then no standby.
5BLBand Limits. If BL = 1, then Japan FM band. If BL = 0, then US/Europe FM band.
4 XTAL If XTAL = 1, then f
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.
0SISearch indicator. If SI = 1, then pin SWPORT1 is output for the ‘ready flag’. If SI = 0,

then pin SWPORT1 is software programmable port 1.

= 32.768 kHz. If XTAL = 0, then f

xtal

= 13 MHz.

xtal

Table 15 Format of 5th data byte

BIT 7 (MSB) BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0 (LSB)

PLLREF DTC −−−−−−

2002 Mar 12 11