ETC 4737PY5

M I C R O T U N E™
4737 PY5 RF TUNER MODULE
(3X7180, 3X8568)
ADVANCE DATA SHEET
CABLE MODEM APPLICATIONS
1 APPLICATIONS
The 4737 PY5 RF Tuner Module is designed for subscriber-side cable modem
applications.
2 FEATURES
•
•
EuroDOCSIS compatible
VHF Low, VHF High, and UHF
•
•
•
•
All functions controlled by I2C bus
Downstream frequency range from 80 MHz to 860 MHz
Upstream frequency range from 5 MHz to 65 MHz
Antenna input: F-connector
3 INTRODUCTION
The 4737 PY5 RF Tuner Module covers a frequency range from 80 MHz to 860 MHz
with a channel bandwidth of 6 MHz for downstream signals, and 5 MHz to 65 MHz
for upstream signals.
Figure 1
4737 PY5 RF Tuner Module
The receiver uses a single-conversion approach with the reception frequency range
divided into VHF low, VHF high, and UHF.
Band selection and tuning is done via the I2C -bus. An automatic gain control (AGC)
input allows for external control of the output signal amplitude.
3X 7180 ED Revision: 02
August 00
Page 1 of 14
7180ED02.doc
4737 PY5 TUNER MODULE
(3X 7180, 3X 8568)
ADVANCE DATA SHEET
CABLE MODEM APPLICATIONS
The common antenna input/output is realized by an F-connector (75Ω).
A digital automatic frequency control (AFC) function can also be realized — the AFC
voltage generated by the IF demodulator is fed to a built-in analog/digital converter
available via pin 6 and readable via the I²C bus.
4 MECHANICAL SPECIFICATIONS
This section contains mechanical specifications for the 4737 PY5 RF Tuner Modules.
4.1 MECHANICAL DRAWING
PIN
1
CONNECTIO
N
Reverse channel
2
3
65,94
F-CONNECTOR
18.0
1
2
3
4
5
6
7
8
9
10 11 12 13
4
Supply voltage VS1
for Power Supply
5
AGC voltage
6
switch port P6 output/input for
7
supply voltage VS2
8
supply voltage VS1 for tuner
9
IIC bus signal
10
IIC bus signal
11
address selection for IIC
12
IF output
13
IF output
+5V
Label
Figure 2
4737 PY5 Mechanical Drawing, Version 3x7180
3X 7180 ED Revision: 02
August 00
Page 2 of 14
7180ED02.doc
4737 PY5 TUNER MODULE
(3X 7180, 3X 8568)
ADVANCE DATA SHEET
CABLE MODEM APPLICATIONS
4.2 MECHANICAL CHARACTERISTI CS
Table 1
Mechanical Characteristics
CHARACTERISTIC
DIMENSIONS
Dimensions
According to drawing 3x7632 GZ for 3x7180 and 3x8568
GZ
Weight
Approximately 41g
Plug holding strength
Plug according to SCTE spec. IPS-sp-407
F-connector mechanical
specification
The F-connector is according IPS-sp-406 and IEC 169-24
Tuner connection
The tuner provides four pins at bottom cover for horizontal
mounting and grounding
Screw fixing of F-connector1
Absolute maximum torque strength: 3.39 Nm / only once
Absolute maximum cantilever strength: 3.39 Nm
Absolute maximum axial strength: 8.99N
1
If the tuner is not mounted on the chassis, the frame may be bent during the test.
Regardless of mounting, the F-connector will not be pulled out of the frame.
5 FUNCTIONAL SPECIFICATIONS
5.1 ABSOLUTE MAXIMUM RATING S
Stresses greater than those listed in Table 2 may cause permanent damage to the
device. These are stress ratings only; functional operation of the device under
conditions other than those listed in Table 3 is not recommended or implied.
Exposure to any of the absolute-maximum rating conditions for extended periods of
time may affect reliability.
Table 2
Absolute Maximum Ratings
MAX
UNIT
Supply voltage (VS1)
6
V
Supply voltage (VS2)
35
V
PARAMETER
MIN
AGC Voltage
Storage temperature
-40
6
V
+70
°C
3X 7180 ED Revision: 02
August 00
Page 3 of 14
7180ED02.doc
4737 PY5 TUNER MODULE
(3X 7180, 3X 8568)
ADVANCE DATA SHEET
CABLE MODEM APPLICATIONS
5.2 OPERATING CHARACTERISTICS
The operating characteristics listed in Table 3 reflect the conditions necessary for
optimal performance and operating reliability.
Table 3
Operating Characteristics
PARAMETER
MIN
TYP
MAX
UNIT
CONDITIONS OR
LOCATION
Frequency range
VHF Low
80
162
MHz
VHF High
156
469
MHz
UHF
463
860
MHz
VHF Low
91
159
MHz
VHF High
159
466
MHz
UHF
466
857
MHz
Referenced to
center frequency
of 8 MHz
bandwidth
kHz
See Table 9
Tuning resolution
Standard tuning increment
62.5
Recommended takeover frequencies
(center)
VHF Low / VHF high
159
MHz
UHF
466
MHz
Intermediate frequency (IF)
Center frequency
43.75
MHz
Oscillator
operates above
received
frequency
75
Ω
Unbalanced
4.1
V
4V ± 0.1V
12
µA
Input impedance
VHF/UHF Common
AGC Voltage
Voltage for maximum gain
Pin 5
3.9
4
AGC Current
VS1 Power supply voltage
Voltage
Pins 4 and 8
4.75
Current
5
5.25
V
160
200
mA
20
mVpp
Permissible ripple voltage
VS2 Power supply voltage
Voltage
20 Hz to 100 kHz
Pin 7
31.35
33
34.65
V
Current
2
mA
Permissible ripple voltage
10
mVpp
33V ± 5%
20 Hz to 100 kHz
Temperature
Operating temperature
-10
+60
°C
Storage temperature
-40
+70
°C
3X 7180 ED Revision: 02
August 00
Page 4 of 14
7180ED02.doc
4737 PY5 TUNER MODULE
(3X 7180, 3X 8568)
ADVANCE DATA SHEET
CABLE MODEM APPLICATIONS
6 TUNER MEASUREMENT TEST CO NDITIONS
All tuner data is held under the following conditions unless otherwise noted:
•
•
•
•
Measurement tolerance:
Ambient temperature:
Supply voltages:
AGC voltage:
10% or 1 dB
+25°C ±3°C
+5V ±2%
+4V ±2%
7 TUNER DATA
Table 4
Electrical Characteristics
PARAMETER
TEST CONDITIONS
Frequency range
MIN
TYP
MAX
UNIT
860
MHz
46
52
dB
7.5
9.5
dB
80
Voltage gain
Measured between antenna input
and IF1 and IF2. The input is loaded
with 75Ω and the output is loaded
with a test circuit (see Figure 3).
Noise figure
See figure 3.
43
VHF Low
VHF High
7.5
9.5
dB
UHF
7.5
9.5
dB
VSWR
Antenna input
AGC Range
Varying AGC voltage from +4V to
+0.5V
VHF Low
Gain reduction
3
45
dB
VHF High
Gain reduction
40
dB
UHF
Gain reduction
40
dB
Influence of AGC on tilt
The noise figure shall not increase by more than the corresponding gain
reduction. The input return loss shall be maintained within the specified limits
over the entire range of AGC voltage.
IF Rejection
Measured from channel center
frequency to 43.75 MHz
VHF Low
50
70
dB
VHF High
60
80
dB
UHF
60
75
dB
Image rejection
VHF Low
60
70
dB
VHF High
55
65
dB
55
60
dB
UHF
RF Tilt
Over an 6 MHz bandwidth around
center frequency
2.5
dB
3X 7180 ED Revision: 02
August 00
Page 5 of 14
7180ED02.doc
4737 PY5 TUNER MODULE
(3X 7180, 3X 8568)
ADVANCE DATA SHEET
CABLE MODEM APPLICATIONS
8 TEST CIRCUITS
Tuner
IF1
IF2
2.2 uH
8 pF
680 Ohm
± 1%
680 Ohm
± 1%
T1
75 Ohm Impedance
Figure 3
Test Circuit
Test circuit attenuation is 22.6 dB.
For the test circuit:
•
•
•
T1 = RF - Transformer
W - Ratio = 1:4
Type: MCL T4-1 or equivalent
8.1 TEST CHARACTERISTICS
Table 5
Test Characteristics
PARAMETER
Signal level for 1 dB
gain compression
TEST CONDITIONS
MIN
TYP
MAX
UNIT
AGC deactivated with
AGC=4V for maximum gain
70
dBµV
With AGC set for 15 dB gain
reduction
85
dBµV
Phase noise
VHF Low
VHF High
UHF
VHF Low
VHF High
UHF
Measured at 1 kHz distance
from carrier
Measured at 10 kHz
distance from carrier
-71
-55
dBc/Hz
-60
-55
dBc/Hz
-58
-55
dBc/Hz
-95
-80
dBc/Hz
-85
-80
dBc/Hz
-85
-80
dBc/Hz
3X 7180 ED Revision: 02
August 00
Page 6 of 14
7180ED02.doc
4737 PY5 TUNER MODULE
(3X 7180, 3X 8568)
ADVANCE DATA SHEET
CABLE MODEM APPLICATIONS
PARAMETER
VHF Low
VHF High
TEST CONDITIONS
MIN
Measured at 20 kHz
distance from carrier
TYP
MAX
UNIT
-102
-90
dBc/Hz
-92
-85
dBc/Hz
UHF
-90
-85
dBc/Hz
VHF Low
-109
-100
dBc/Hz
-106
-100
dBc/Hz
-103
-100
dBc/Hz
VHF High
UHF
Oscillator voltage at
aerial terminal;
terminated with 75Ω
Intermodulation
Measured at 100 kHz
distance from carrier
<88 MHz
No oscillator signal
<860 MHz
5
dBµV
<1740 MHz
40
dBµV
With a fully loaded multi-tone signal generator (129 channels), carrier
levels at +15 dBmV, and AGC set for a 15 dB reduction in gain,
distortion levels shall not exceed these limits:
Composite triple
beat
50
dB
Composite
second order
beat
50
dB
Group delay
Over any 6 MHz bandwidth centered about the tuned frequency, and
for AGC over the range from maximum gain down to –25 dB below
maximum gain, the group delay variation as measured between the
antenna terminal and the IF output terminal shall not exceed these
limits:
VHF Low
60
100
ns p-p
VHF High
30
100
ns p-p
100
ns p-p
100
ms
UHF
20
PLL Settling time
Charge pump current high
9 REVERSE CHANNEL INPUT (PI N 1)
Table 6
Reverse Channel Input (Pin 1)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNIT
2
dB
Insertion loss from Pin 1 to antenna terminal input
5 MHz to 65 MHz
88 MHz to < 96 MHz
96 MHz to < 180 MHz
Antenna input
terminated with 75Ω
180 MHz to 860 MHz
48
dB
53
dB
45
dB
48
dB
53
dB
45
dB
Antenna input to tuner part input
88 MHz to < 96 MHz
96 MHz to < 180 MHz
180 MHz to 860 MHz
Antenna input
terminated with 75Ω
Diplexer channel input VSWR (Pin 1)
5 MHz to 65 MHz
2
3X 7180 ED Revision: 02
August 00
Page 7 of 14
7180ED02.doc
4737 PY5 TUNER MODULE
(3X 7180, 3X 8568)
ADVANCE DATA SHEET
CABLE MODEM APPLICATIONS
9.1 DIPLEXER GROUP DELAY VARI ATION
The diplexer group delay variation in any 2 MHz bandwidth within the frequency
range of 5 MHz to 65 MHz shall not exceed 60 nsec.
9.2 REVERSE CHANNEL HARMONIC DISTORTION
The reverse channel path within the tuner (diplex filter) shall not generate harmonic
distortion in excess of 100 dB below the level of the reverse channel signal when the
level of the reverse channel signal at the antenna terminal is +58 dBmV.
9.3 FULL DUPLEX OPERATION
With an upstream signal at a level of +58 dBmV and amplitude modulation of 50%,
modulation transferred to the downstream signal shall not exceed 1%. In addition,
the signal-to-noise ratio of the downstream signal shall not be reduced to less than
30 dB as a result of the presence of the upstream signal.
10 I2C BUS
10.1 WRITE DATA FORMAT
Table 7
Write Data Format
MSB
LSB
Address byte
1
1
0
0
0
MA1
MA0
R/W1
A2
Divider byte 1
0
n14
n13
n12
n11
n10
n9
n8
A
Divider byte 2
n7
n6
n5
n4
n3
n2
n1
n0
A
Control byte 1
1
CP3
T2
T1
T0
RSA
RSB
OS
A
Control byte 2
P7
P6
P5
P4
P3
P2
P1
P0
A
1
R/W = 0 is write mode
A = Acknowledge
3
CP = 1 is charge pump current high
2
Note: MSB is transmitted first.
3X 7180 ED Revision: 02
August 00
Page 8 of 14
7180ED02.doc
4737 PY5 TUNER MODULE
(3X 7180, 3X 8568)
ADVANCE DATA SHEET
CABLE MODEM APPLICATIONS
Table 8
Address Selection
MA1
MA0
ADDRESS
0
0
C0
(0 to 0.1) VS1
0
1
C2
Always valid
1
0
C4
(0.4 to 0.6) VS1
1
1
C6
(0.9 to 1) VS1
Table 9
VOLTAGE AT PIN 11
Oscillator Frequency and Divider Byte Calculation
RSA
RSB
REFERENCE DIVIDER
MINIMUM TUNING
STEP
FREF
7.8125 kHz
1
1
512
62.5 kHz
X
0
640
50.0 kHz
6.25 kHz
0
1
1024
31.25 kHz
3.90625 kHz
Use the following formula to calculate oscillator frequency and divider byte.
fosc = fref × 8 × SF
Where:
fosc = Local oscillator frequency
fref = Crystal reference frequency / 512 = 4 MHz / 512 = 7.8125 kHz
SF = Programmable scaling factor
Scaling factor is SF = 16384 × n14 + 8192 × n13 + 4096 × n12 + 2048
× n11 + 1024 × n10 + 512 × n9 + 256 × n8 + 128 × n7 + 64 × n6 + 32 ×
n5 + 16 × n4 + 8 × n3 + 4 × n2 + 2 × n1 + n0
10.2 CONTROL BYTES
Table 10
Control Byte 1 Settings (Default)
MSB
Control byte 1
1
Table 11
CODE
LSB
1
0
0
1
1
1
0
A
Control Byte 1 Settings Default Descriptions
DESCRIPTION
CP
Charge pump current
T0, T1, T2
Test mode bit
SETTINGS
1 = fastest tuning
0 = better phase noise for
distance < 10 kHz to the carrier
RSA, RSB
Reference divider
See Table 9
OS
Tuning voltage
0 = On
3X 7180 ED Revision: 02
August 00
Page 9 of 14
7180ED02.doc
4737 PY5 TUNER MODULE
(3X 7180, 3X 8568)
ADVANCE DATA SHEET
CABLE MODEM APPLICATIONS
Table 12
BAND
Control Byte 2 (Band Selection)
ACTIVE PORT
P7
P6
P5
P4
P3
P2
P1
P0
UHF
P0
X
0
X
X
0
0
0
1
VHF High
P2
X
0
X
X
0
1
0
0
VHF Low
P1
X
0
X
X
0
0
1
0
LSB
ACK
Note: X = not used
10.3 READ DATA FORMAT
Table 13
Read Data Format
MSB
Address byte
Status byte
1
1
0
0
0
MA1
MA0
R/W
A
POR
FL
I2
I1
I0
A2
A1
A0
A
Note: MSB is transmitted first.
Table 14
Read Data Format Descriptions
CODE
DESCRIPTION
R/W
1 = Read mode
POR
Power on reset flag (POR =1 at power on)
FL
In lock flag (FL= 1 when PLL is locked)
I2, I1, I0
Digital levels for I/O ports P7, P5 and P4
A2, A1, A0
Digital output of 5-level ADC for AFC function. Value for
correct tuning:
A2 = 0
A1= 1
A0 = 0
10.4 A/D CONVERTER LEVELS
Table 15
A/D Converter Levels
VOLTAGE APPLIED ON PORT P6
A2
A1
A0
0.6 VS1 to VS1
1
0
0
0.45 VS1 to 0.6 VS1
0
1
1
0.3 VS1 to 0.45 VS1
0
1
0
0.15 VS1 to 0.3 VS1
0
0
1
0 to 0.15 VS1
0
0
0
3X 7180 ED Revision: 02
August 00
Page 10 of 14
7180ED02.doc
4737 PY5 TUNER MODULE
(3X 7180, 3X 8568)
ADVANCE DATA SHEET
CABLE MODEM APPLICATIONS
11 SAFETY AND RELIABILITY
11.1 ELECTROSTATIC DISCHARGE (E SD) PROTECTION
WARNING:
The tuner contains components that can be damaged by
electrostatic discharge.
Observe these precautions:
•
•
Ground yourself before handling the tuner.
Do not touch the tuner connector pins without ESD protection.
11.2 HIGH VOLTAGE
The tuner meets specifications IEC 801.2 level 2.
11.3 HUMIDITY
Table 16
Local Oscillator Drift
TEST CONDITION
DRIFT
UNIT
VHF Low
± 15
kHz
VHF High
± 45
kHz
UHF
± 75
kHz
PROCEDURE
1.
Run 60 hours at +55°C and 20% relative humidity.
2.
Run 1 hour at +23°C and 50% relative humidity.
3.
Take first measurement.
4.
Run 65 hours at +40°C and 95% relative humidity.
5.
Take second measurement.
11.4 VIBRATION TEST
After applying vibration of 1.5 mm amplitude, frequency of 10 - 55 - 10 Hz (1 minute)
each X, Y, Z direction for 2 hours (total 6 hours), tuner shall not have any rattling or
loosening and shall comply with the variation to its initial value as listed in Table 17.
Table 17
Vibration Test
MEASUREMENT
UNIT
Gain variation
<±3
dB
Wave variation
< ± 30
%
PARAMETER
3X 7180 ED Revision: 02
August 00
Page 11 of 14
7180ED02.doc
4737 PY5 TUNER MODULE
(3X 7180, 3X 8568)
ADVANCE DATA SHEET
CABLE MODEM APPLICATIONS
11.5 MICROPHONY
The microphony test is made with a TV set. The resolution is optimal. With maximum
AF output of the TV set, the tuner is free of microphonic effects provided the unit is
installed in a professional manner.
11.6 LOOSE CONTACT TEST
The loose contact test is made with a TV set. The test pattern is a color bar. The
resolution is optimal. To test, knock the TV set. There must be no visible effects,
provided the unit is installed in a professional manner.
11.7 LOOSE CONTACT TEST OF TUNE R ALONE
The test pattern is a color bar. The resolution is 3 MHz. To test, knock the edge of the
tuner. There must be no interruption effects, provided the tuner is fastened with a
ground contact.
11.8 NATIONAL REGULATIONS
The tuner meets the requirements of VDE 9872/7.72 and Amtsblatt DBP 069/1981
(FTZ), EN 55013, EN 55020 (if properly mounted into TV set, VCR, or converter).
12 ORDERING INFORMATION
The 4737 PY5 Tuner Modules may be ordered in the packaging units and quantities
shown in Table 18 and Table 19. For packaging options and quantities other than
those shown, contact one of the offices listed on the following page.
Table 18
Packaging Units
4737 PY5 TUNER MODELS
PACKAGING UNITS
3X7180
3X8568
Number of Tuner Modules Per Box
108
90
Number of Boxes Per Master Box
56
56
3X 7180 ED Revision: 02
August 00
Page 12 of 14
7180ED02.doc
4737 PY5 TUNER MODULE
(3X 7180, 3X 8568)
ADVANCE DATA SHEET
CABLE MODEM APPLICATIONS
Table 19
Order Quantities
NUMBER OF MASTER
BOXES
TOTAL NUMBER OF TUNERS PER
MASTER BOX
3X7180
3X8568
0.5
3,024
2,520
1.0
6,048
5,040
1.5
9,072
7,560
2.0
12,096
10,080
2.5
15,120
12,600
3.0
18,144
15,120
3.5
21,168
17,640
4.0
24,192
20,160
4.5
27,216
22,680
5.0
30,240
25,200
13 REVISION HISTORY
ECN
NO.
DATE
REF/REV
Reiß
71 / 00
14.7.00
01
Reiß
80 / 00
23.8.00
02
NAME
DESCRIPTION
3X 7180 ED Revision: 02
August 00
Page 13 of 14
7180ED02.doc
4737 PY5 TUNER MODULE
(3X 7180, 3X 8568)
ADVANCE DATA SHEET
CABLE MODEM APPLICATIONS
NOTICES
NOTICE - The information in this document is believed to be accurate and reliable. Microtune assumes no
responsibility for any consequences arising from the use of this information, nor from any infringement of patents
or the rights of third parties which may result from its use. No license is granted by implication or otherwise under
any patent or other rights of Microtune. The information in this publication replaces and supersedes all
information previously supplied, and is subject to change without notice. The customer is responsible for
assuring that proper design and operating safeguards are observed to minimize inherent and procedural
hazards. Microtune assumes no responsibility for applications assistance or customer product design.
NOTICE - The devices described in this document are not authorized for use in medical, life-support equipment,
or any other application involving a potential risk of severe property or environmental damage, personal injury, or
death without prior express written approval of Microtune. Any such use is understood to be entirely at the user’s
risk.
TRADEMARKS - Microtune, MicroTuner, and the Microtune logo are trademarks of Microtune, Inc. All other
trademarks belong to their respective companies.
PATENTS – Microtune’s products are protected by one or more of the following U.S. patents: 5,625,325;
5,648,744; 5,717,730; 5,737,035; 5,739,730; 5,805,988; 5,847,612; 6,100,761; 6,104,242; 6,144,402; 6,163,684;
6,169,569; 6,177,964; 6,218,899 and additional patents pending or filed.
COPYRIGHT - Entire contents Copyright © 2001 Microtune, Inc.
World Headquarters
Microtune, Inc.
2201 Tenth Street
Plano, TX 75074
USA
European Headquarters
Microtune GmbH and Co. KG
Marie Curie Strasse 1
85055 Ingolstadt / Germany
Pan-Asian Headquarters
Microtune (Hong Kong) Ltd.
Room 1008 Star House
3 Salisbury Road
Tsimshatsui, Hong Kong
Telephone: 972-673-1600
Fax: 972-673-1602
Email: sales@microtune.com
Website: www.microtune.com
Telephone: +49-841-9378-011
Fax: +49-841-9378-010
Sales Telephone: +49-841-9378-020
Sales Fax: +49-841-9378-024
Telephone: +852-2376-2323
Fax: +852-2302-0756
For a detailed list of current sales representatives, visit our Web site at www.microtune.com.
3X 7180 ED Revision: 02
August 00
Page 14 of 14
7180ED02.doc