• All modes supported including
hierarchical modes.
• On chip 9-bit ADC.
• Digital down conversion.
• Fully automatic transmission parameters
detection.
• Crystal or VCXO clock generation.
• Frequency offset estimator to speed up
the scan.
• RF Tuner input power measurement
• On chip FEC decoder, full DVB-T
compliant.
• Parallel or serial transport stream
interface.
• DSP based synchronization.
• BER measurement
• SNR estimation
• Channel frequency response output.
• Channel impulse response output.
• Controllable dedicated I2C tuner bus.
• 2 low frequency spare DAC. (∆Σ)
• Spare I/O.
• I2C bus interface, for easy control.
• CMOS 0.35µm technology.
DESCRIPTION
The VES9600 is a single chip channel receiver for 2K and 8K
COFDM modulated signals based on the ETSI specification (ETSI
300 744). The device interfaces directly to an IF signal, which is
sampled by a 9-bit AD converter.
The VES9600 performs all the COFDM demodulation tasks from IF
signal to the MPEG2 transport stream. An internal DSP core
manages the synchronization and the control of the demodulation
process.
After base band conversion and FFT, the channel frequency
response is estimated based on the scattered pilots, and filtered in
both time and frequency domains. This estimation is used as a
correction on the signal, carrier by carrier. A common phase error
and estimator is used to deal with the tuner phase noise.
The FEC decoder is automatically synchronized thanks to the frame
synchronization algorithm that uses the TPS information included in
the modulation. Finally descrambling according to DVB-T standard,
is achieved at the Reed Solomon output.
This device is controlled via an I2C bus. The chip provides a
switchable tuner I2C bus to be disconnected from the I2C master
when not necessary. The DSP software code can be fed to the
chip via the master I2C bus or via a dedicated I2C bus (Eeprom).
Designed in 0.35 µm CMOS technology and housed in a 208-pin
MQFP package, the VES9600 operates over the commercial
temperature range.
APPLICATIONS
• DVB-T fully compatible.
• Digital data transmission using
COFDM modulations.
1999 Sep 012
Page 3
1999 Sep 013
FIGURE 1 : FUNCTIONAL BLOCK DIAGRAM
Single Chip DVB-T Channel ReceiverVES9600
Philips SemiconductorsProduct specification
IF
SACLK
XIN
O AGC
SDA
SCL
ADC
/2
9
2
IC
INTERFACE
NCO
BASE-BAND
CONVERSION
Σ/∆
OAK+ DSP CORE (XIN MIPS)
Frequency Timing framing recovery
CARRIER
RECOVERY
AGC
OUTER
DE-INTERLEAVER
FFT
INNER
DE-INTERLEAVER
R. S.
DECODER
10
CHANNEL
ESTIMATOR
CPE
3 Symbols
DELAY LINE
Σ/∆
TIMING
FREQUENCY
INTERPOLATOR
CORRECTION
VITERBI
DECODER
DE-SCRAMBLER
General purpose
digital inputs/outputs
3
analog outputs
CONFIDENCE
I
RECOV_DATA
Q
DO
OCLK
DEN
TO TUNER
Page 4
Philips SemiconductorsProduct specification
Single Chip DVB-T Channel ReceiverVES9600
INPUT - OUTPUT SIGNAL DESCRIPTION
SYMBOLPIN NUMBERTYPEDESCRIPTION
CLOCK AND RESET SIGNALS
CLR#32Ireset signal, active low
8
XIN
XOUT9OCrystal oscillator output pin.
SACLK
USE_NCO33IWhen low the chip is in VCXO mode else in NCO mode
CTRL_VCXO
CLK_X1
CLK_X2
25O
26O
181O
180O
I
(5V)
(5V)
(5V)
(5V)
Crystal oscillator input pin. When USE_NCO pin is high a third
overtone XTAL should be connected between the XIN and XOUT pins.
When USE_NCO pin is low a VCXO should be connected between
XIN and via a RC filter to the CTRL_VCXO output.
Sampling frequency output. This output clock can be fed to an
external (10-bit) ADC as sampling clock. SACLK= XIN/2
If not in NCO mode, control of an external sampling VCXO (after low-
pass filtering)
Internal SACLK equivalent monitoring output.
Internal SACLK* 2 equivalent monitoring output.
DEMODULATOR SIGNALS
FI[9:0]12-13-14-15-16-
19-20-21-22-23
FFT_WIN_IN81Ito be connected to FFT_WIN_OUT in default mode.
FFT_WIN_OUT82O
VAGC27O
RECOV_DATA
[7:0]
CFND[3 :0]151-152-153-154O
H2[3:0]160-161-162-163O
EN_CLK
D_START145O
D_VAL144O
FRAME147O
SUPER_FRAME146O
TPS_VAL143O
FEL
168-169-170171-172-173-
174-175
150O
770
IInput data from an external ADC, FI must be tied to ground when not
used, positive notation (from 0 to 1023) or two’s complement notation
(from -512 to 511).
Output signal, indicating the start of the active data; equals 1 during
(3.3)
output value from the Delta-Sigma Modulator, used to control a log-
(5V)
O
Demodulator output signal (after channel correction), synchronous with
(3.3)
(3.3)
(3.3)
(3.3)
(3.3)
(3.3)
(3.3)
(3.3)
(3.3)
(5V)
the falling edge of CLK_X1, provided in a multiplexed way, I first.
Multiplexed output bearing the confidence factor during I and channel
response square amplitude during Q (4 MSB bits), respectively to
RECOV_DATA. (For the channel square amplitude see C2_H2)
4 LSB bits of the channel response square amplitude according to
enable clk18 to synchronize and phase the RECOV_DATA H2 et
CFND outputs. EN_CLK is set to 1 during I and 0 during Q.
Output signal, indicating the start of the active data out of the
equalizer; equals 1 during sample Kmin of the RECOV_DATA current
output block, for 2 18MHz clock cycles. CAUTION : sample Kmin does
not convey regular data, since it happens to be a continual carrier; it is
the first active (non zero) sample of the current OFDM block, but
active when RECOV_DATA corresponds to regular data .
Indicate the active data out of the first block in a frame at the
Same as FRAME in 8K; in 2K, active only on the first block of each
superframe. Indicates the beginning of a new SUPER-FRAME.
active when RECOV_DATA corresponds to TPS demodulated data .
front end lock. FEL is an output drain output and therefore requires an
complex sample 0 of the active FFT block
scaled amplifier (after analog filtering )
Normal order.
CFND.
D_VAL and TPS_VAL (see below) will be low.
demodulation part output. (RECOV_DATA)
external pull up resistor.
1999 Sep 014
Page 5
Philips SemiconductorsProduct specification
Single Chip DVB-T Channel ReceiverVES9600
76
IT
DO[7:0]118-119-120-
121-124-125-
126-127
OCLK113O
DEN115O
PSYNC112O
UNCOR114O
FSTART109O
108
DVIT
HVIT
107O
(5V)
(3.3)
(3.3)
(3.3)
(3.3)
(3.3)
(3.3)
(3.3)
(3.3)
Interrupt line. This output interrupt line can be configured by the I2C
O
interface. See registers Itsel and Itstat. IT is an open drain output and
therefore requires an external pull up resistor.
FEC OUTPUTS
O
output data carrying the current sample of the current MPEG2 packet
(188 bytes), delivered on the rising edge of OCLK by default. When
the serial mode is selected, the output data is delivered by DO[0].
Output CLock. OCLK is the output clock for the parallel DO[7:0]
outputs. OCLK is internally generated depending on which interface is
selected.
output data validation signal active high during the valid and regular
data bytes (may be inverted, see serial bus description).
Pulse SYNChro. This output signal goes high on a rising edge of
OCLK when a synchro byte is provided, then goes low until the next
synchro byte (may be inverted).
RS error flag, active high on one RS packet if the RS decoder fails in
correcting the errors (may be inverted).
Frame start active high for one OCLK output clock cycle at the
beginning of a new superframe made of 272 OFDM symbols for the 2k
mode and made of 68 OFDM symbols for the 8k mode (may be
inverted as C3_psync).
viterbi output data stream, delivered on the rising hedge of HVIT. You
O
can also find the viterbi output on DO[0] after by-passing the RS and
the descrambling.
viterbi output data stream clock, according to DVIT.
ON-CHIP ADC SIGNALS
48
VIM
49
VIP
42
CMCAP
39
RBIAS
40
CMI
41
CMO
45
VREF
VREFP44OThis is a positive voltage reference for the A/D converter. It is derived
I
I
I
I
O
O
O
Negative input to the A/D converter. This pin is DC biased to half
supply through an internal resistor divider (2x10K resistors). In order
to remain in the range of the ADC, the voltage difference between pins
VIP and VIM should be between -0.5 and 0.5 volts.
Positive input to the A/D converter. This pin is DC biased to half supply
through an internal resistor divider (2x10K resistors). In order to
remain in the range of the ADC, the voltage difference between pins
VIP and VIM should be between –0.5 and 0.5 volts.
This pin is connected to a tap point on an internal resistor divider used
to create CMO and CMI. An external capacitor of value 0.1µf should
be connected between this point and ground to provide good power
supply rejection from the positive supply at higher frequencies.
An external resistor of value 3.3k
pin and ground to provide good accurate bias currents for the analog
circuits on the ADC.
This pin provides the common-mode in voltage for the analog circuits
on the ADC. It is the buffered version of a voltage derived from an onchip resistor devider, and has a nominal value of 0.75 x VD3.
This pin provides the common-mode out voltage for the analog circuits
on the ADC. It is the buffered version of a voltage derived from an on-
chip resistor devider, and has a nominal value of 0.5 x VD3.
This is the output of an on-chip resistor divider. An exter nal capacitor
of value 0.1µf should be connected between this point and ground to
provide good power supply rejection from the positive supply at higher
frequencies. Reference voltages VREFP and VREFM are derived from
the voltage on VREF.
should be connected between this
1999 Sep 015
Page 6
Philips SemiconductorsProduct specification
Single Chip DVB-T Channel ReceiverVES9600
from the voltage on pin VREF through an on-chip fully-differential
amplifier. The voltage on this pin is nominally equal to CMO + 0.25
volts.
43
VREFM
VD138IPower supply input for the digital switching circuitry (3.3 typ).
VS137IGround return for the digital switching circuitry.
VD251IPower supply input for the analog clock drivers (3.3V typ).
VS250IGround return for the analog clock drivers.
VD346IPower supply input for the analog circuits (3.3V typ).
VS347IGround return for analog circuits.
VD4
VS436IGround return for the well guard ring that surrounds the ADC.
SCL62II2C serial clock. Up to 700 kbit/s, in this functional mode, I2C slave
SDA63I/OI2C serial data inout, open drain I/O pad Up to 700 kbit/s, in this
SADDR[1:0]
SCL_TUN
SDA_TUN
SCL_EEP66OExtra I2C clock line to download DSP code from an external
SDA_EEP67I/OExtra I2C data bus to download DSP code from an external EEPROM.
52
206-207
64
65
O
I
I
O
I/O
This is the negative voltage reference for the A/D converter. It is
derived from the voltage on pin VREF through an on-chip fully-
differential amplifier. The voltage on this pin is nominally equal to
CMO- 0.25 volts.
Power supply input that connects to an n-well guard ring that
surrounds the ADC (3.3V typ).
I2C INTERFACES
device
functional mode, I2C slave device
SADDR[1:0] are the 2 LSBs of the I2C address of the VES9600. The
MSBs are internally set to 00010. Therefore the complete I2C address
of the VES9600 is (MSB to LSB): 0,0,0,1,0,SADDR[1], SADDR[0]
tuner I2C serial clock signal. Can be connected or not to the master
I2C bus. (open drain)
Tuner I2C data bus. Can be connected or not to the master I2C bus.
(open drain)
EEPROM. Optional mode. Can be connected to the master I2C Bus
, (open drain)
Optional mode. Can be connected to the master I2C Bus. (open drain)
1.All inputs (I) are TTL, 5V tolerant inputs (excepted FFT_WIN_IN which is 3.3V only)
2.OD are Open Drain 5V outputs, so they must be connected to a pull-up resistor to either VDD or VCC
3. Test IO, inputs must be connected to GND.
3
3
3
1999 Sep 0110
Page 11
Philips SemiconductorsProduct specification
Single Chip DVB-T Channel ReceiverVES9600
PACKAGE INFORMATION
NOTE : Dimensions are in millimeters
1999 Sep 0111
Page 12
Philips SemiconductorsProduct specification
Single Chip DVB-T Channel ReceiverVES9600
DATA SHEET STATUS
DATA SHEET STATUS
PRODUCT
STATUS
DEFINITIONS
(1)
Objective specificationDevelopmentThis data sheet contains the design target or goal specifications for
product development. Specification may change in any manner without
notice.
Preliminary specificationQualificationThis data sheet contains preliminary data, and supplementary data will be
published at a later date. Philips Semiconductors reserves the right to
make changes at any time without notice in order to improve design and
supply the best possible product.
Product specificationProductionThis data sheet contains final specifications. Philips Semiconductors
reserves the right to make changes at any time without notice in order to
improve design and supply the best possible product.
Note
1. Please consult the most recently issued data sheet before initiating or completing a design.
DEFINITIONS
Short-form specification The data in a short-form
specification is extracted from a full data sheet with the
same type number and title. For detailed information see
the relevant data sheet or data handbook.
Limiting values definition Limiting values given are in
accordance with the Absolute Maximum Rating System
(IEC 60134). Stress above one or more of the limiting
values may cause permanent damage to the device.
These are stress ratings only and operation of the device
attheseoratanyotherconditionsabovethosegiveninthe
Characteristics sections of the specification is not implied.
Exposure to limiting values for extended periods may
affect device reliability.
Application information Applications that are
described herein for any of these products are for
illustrative purposes only. Philips Semiconductors make
norepresentationorwarrantythatsuchapplicationswill be
suitable for the specified use without further testing or
modification.
DISCLAIMERS
Life support applications These products are not
designed for use in life support appliances, devices, or
systems where malfunction of these products can
reasonably be expected to result in personal injury. Philips
Semiconductorscustomersusingorsellingtheseproducts
for use in such applications do so at their own risk and
agree to fully indemnify Philips Semiconductors for any
damages resulting from such application.
Right to make changes Philips Semiconductors
reserves the right to make changes, without notice, in the
products, including circuits, standard cells, and/or
software, described or contained herein in order to
improve design and/or performance. Philips
Semiconductors assumes no responsibility or liability for
theuseofanyoftheseproducts,conveysnolicenceor title
under any patent, copyright, or mask work right to these
products,andmakesnorepresentationsorwarrantiesthat
these products are free from patent, copyright, or mask
work right infringement, unless otherwise specified.
2
PURCHASE OF PHILIPS I
C COMPONENTS
Purchase of Philips I
2
C components conveys a license under the Philips’ I2C patent to use the
components in the I2C system provided the system conforms to the I2C specification defined by
Philips. This specification can be ordered using the code 9398 393 40011.
1999 Sep 0112
Page 13
Philips SemiconductorsProduct specification
Single Chip DVB-T Channel ReceiverVES9600
NOTES
1999 Sep 0113
Page 14
Philips SemiconductorsProduct specification
Single Chip DVB-T Channel ReceiverVES9600
NOTES
1999 Sep 0114
Page 15
Philips SemiconductorsProduct specification
Single Chip DVB-T Channel ReceiverVES9600
NOTES
1999 Sep 0115
Page 16
Philips Semiconductors – a w orldwide compan y
Argentina: see South America
Australia: 3 Figtree Drive, HOMEBUSH, NSW 2140,
United States: 811 East Arques Avenue, SUNNYVALE, CA 94088-3409,
Tel. +1 800 234 7381, Fax. +1 800 943 0087
Uruguay: see South America
Vietnam: see Singapore
Yugoslavia: PHILIPS, Trg N. Pasica 5/v, 11000 BEOGRAD,
Tel. +381 11 3341 299, Fax.+381 11 3342 553
For all other countries apply to: Philips Semiconductors,
Marketing Communications, Building BE-p, P.O. Box 218, 5600 MD EINDHOVEN,
The Netherlands, Fax. +31 40 27 24825
The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed
without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license
under patent- or other industrial or intellectual property rights.
2000
Internet: http://www.semiconductors.philips.com
70
Printed in The Netherlands753504/02/pp16 Date of release: 1999 Sep 01Document order number: 9397 750 07147
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