Page 1 of
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Digital Satellite NIM Specification 1.2
Feb. 2001
Digital Satellite Network Interface Module
115-T-7121TPA
APPLICATIONS
-
Set-Top Box applications for DVB-S and DSS
-
Digital Satellite MODEM
FEATURES
-
950 ~ 2150 MHz tuning range
-
1 ~ 45M symbol rate supported, thus suitable for SCPC and MCPC application
-
Internal AGC monitor out
-
I2C-bus control for tuner PLL and for LINK IC
-
Loop through output
-
Both parallel and serial output transport stream interface
-
22KHz tone output for LNB and DiSEqC
-
Viterbi BER monitoring
-
Regulated transport interface, DATA_CLK polarity selection supported
-
System clock generation PLL with low frequency external clock
History
Initial Release
Release 1.0
Nov. 15 1999
Release 1.1
Nov. 5. 2000, port switching @ 1500Mhz
Release 1.2
Feb. 2. 2001, pin#10(PORT2) to GND
HYNIX Semiconductor Co. LTD.
System IC Division
TEL: 82-2-3459-3168
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Digital Satellite NIM Specification 1.2
Feb. 2001
Contents
1. General Specification of RF Tuner........................................................................................................................3
2. Electrical Specification of RF Tuner.....................................................................................................................4
3. Tuner Synthesizer PLL Information......................................................................................................................4
4. General Specification of LINK IC.........................................................................................................................6
5. Electrical Specification of LINK IC ......................................................................................................................8
6. NIM Configuration...................................................................................................................................................8
Contents of Table
Fig. 1 RF Tuner Block Diagram(ZIF version).......................................................................................................10
Fig. 2 LINK IC(HDM8513A) block diagram........................................................................................................11
Fig. 3 Output Timing Diagram for DVB ................................................................................................................12
Fig. 4 Output Timing Diagram for DSS..................................................................................................................12
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Digital Satellite NIM Specification 1.2
Feb. 2001
1. General Specification of RF Tuner
1
1.1 Power Supply
ITEM
MIN
TYPICAL
MAX
UNIT
5V Supply Voltage
4.75
5
5.25
V
5V Supply Current
230
260
mA
Tuning Voltage
28
30
33
V
Tuning Current
2
mA
LNB Voltage
LNB Supply Current
500
mA
1.2 Ambient Conditions
ITEM
MIN
TYPICAL
MAX
UNIT
Operating Temperature 0
60
C
Storage Temperature
-20
70
C
Operating Humidity
85
%
Storage Humidity
90
%
1.3 Antenna Terminal
- RF Input: f-type, 75
- RF Loop-through: f-type, 75
1.4 Down Conversion
- Broad band IQ down conversion, integrated in ZIF IC
1.5 I/Q Demodulator
- Integrated in ZIF IC
1.6 AGC Voltage
- 0 ~ 5V DC
1
See Fig. 1 for block diagram.
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Digital Satellite NIM Specification 1.2
Feb. 2001
2. Electrical Specification of RF Tuner
Test Condition
Supply voltage
B+(5V): 5V
0.1V
VT(30V): 28V
0.1V
Ambient temperature: 25
C
5
C
Ambient humidity: 65%
10%
ITEM
MIN
TYPICAL
MAX
UNIT
CONDITION
2.1 Input Level
-65
-25
dBm
2.2 Input VSWR
2
3
2.3 Noise Figure
6
12
dB
2.4 3'rd Order Inter mo du-
lation Rejection Ratio
40
dB
-25dBm level
difference
2.5 Local Oscillation
Signal Leakage at RF Input
Terminal
-65
-50
dBm
2.6 Gain Deviation
5
10
dB
950~2150MHz
2.7 Phase Noise @10KHz
@100KHz
-75
-95
-70
-90
dBc/Hz
2.8 I/Q Level Imbalance
1
dB
I relative
2.9 I/Q Phase Error
3
DEG
2.10 I/Q Baseband Flatness
3
dB
2.11 I/Q Output Level
600
mVp-p
1K
, 15pF load
2.12 I/Q Output Impedance
250
3. Tuner Synthesizer PLL Information
3.1 IC adopted : SP5769
3.2 I2C address: 0xC2, fixed internally
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Digital Satellite NIM Specification 1.2
Feb. 2001
3.3 Write Registers
MSB
LSB
Prog. divider
Byte1 0
N14
N13
N12
N11
N10
N9
N8
A
Prog. divider
Byte2 N7
N6
N5
N4
N3
N2
N1
N0
A
Control data
Byte3 1
T2
T1
T0
R3
R2
R1
R0
A
Control data
Byte4 C1
C0
RE
RS
P3
P2
P1
P0
A
A: Acknowledge bit
N14~N0: Programmable divider bits
N = N14
2
14
+ N13
2
13
+ ... +N1
2
1
+N0
R3,R2,R1,R0: Reference Division Ratio(See Table 1)
C0,C1: Charge pump current(See Table 2)
RE, RS: Not used, for normal operation RE=0 and RS=don't care
T2,T1,T0: Test mode control, for normal operation T2=0 and T1=T0=don't care
P3,P2,P1,P0: Port output states, for normal operation P3=P2=P0=don't care, P1 is used for switcing local
oscillator, i.e. if f
LO
< 1500MHz then P1=1, else P1=0
Table 1 Reference Division Ratio (4MHz external reference)
R3
R2
R1
R0
Ratio
Comparison frequency
0
0
0
0
2
2MHz
0
0
0
1
4
1MHz
0
0
1
0
8
500KHz
0
0
1
1
16
250KHz
0
1
0
0
32
125KHz
0
1
0
1
64
62.5KHz
0
1
1
0
128
31.25KHz
0
1
1
1
256
15.62KHz
1
0
0
0
24
166.67KHz
1
0
0
1
5
800KHz
1
0
1
0
10
400KHz
1
0
1
1
20
200KHz
1
1
0
0
40
100KHz
1
1
0
1
80
50KHz
1
1
1
0
160
25KHz
1
1
1
1
320
12.5KHz
* Recommended, 125KHz
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Digital Satellite NIM Specification 1.2
Feb. 2001
Table 2 Charge Pump Current
CURRENT(uA)
C1
byte 5, bit 1
C0
byte 5, bit 2
MIN
TYPICAL
MAX
0
0
98
130
162
0
1
210
280
350
1
0
450
600
750
1
1
975
1300
1625
* Recommended, C1=1, C0=0
Example for determining programmable divider
Desired channel frequency =
LO frequency(f
LO
) =
1200MHz
if f
REF
=125KHz
thus ratio = 32, R3=0, R2=1, R1=0, R0=0
then Programmable divider =
f
LO
(1/f
REF
) =
(1200.0E6/1)(1/125.0E3) =
9600 = 0x2580
3.4 Read Register
MSB
LSB
Status byte
Byte1 POR
FL
0
0
0
0
0
0
A
A: Acknowledge bit
POR: Power-On reset indicator
FL: PLL lock flag(FL=1 if locked)
* PLL lock-up time: TBD
4. General Specification of LINK IC
2
4.1 IC adopted: HDM8513A
3
2
See Fig. 2 for block diagram.
3
Register information is not included in this specification, see
HDM8513A Users Manual
for detail
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Digital Satellite NIM Specification 1.2
Feb. 2001
4.2 I2C address: 0xe8, fixed internally
4.3 Power Supply
MIN
TYPICAL
MAX
UNIT
3.3V Supply Voltage
3.0
3.3
3.6
V
3.3V Supply Current
367 (@30Msps, 1/2 inner rate)
420
mA
4.4 Ambient Conditions
ITEM
MIN
TYPICAL
MAX
UNIT
Operating Temperature -10
70
C
Storage Temperature
-65
150
C
4.5 LINK IC functionality
ITEM
DESCRIPTION
NOTE
ADC
6 bit dual sigma-delta ADC
60MHz
System Clock Generation
Internal PLL with external reference clock
QPSK Demodulation
-
Root-raised cosine filter with roll-off 0.35
-
Digital carrier recovery loop (autonomous sweep
functionality)
-
Digital symbol recovery loop
-
Digital AGC (0~3V DC)
Viterbi Decoding
1/2, 2/3, 3/4, 5/6, 7/8 with constraint length K=7
6/7 for DSS
Deinterleaving
interleaving depth I=12
ReedSolomon Decoding
(204, 188, 8)
Descrambling
Energy dispersal descrambling
Viterbi BER Indicator
Number of errors among 2
20
data bits
description.
Page 8 of
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Digital Satellite NIM Specification 1.2
Feb. 2001
Maximum symbol rate consideration @60MHz CLK
Viterbi rate
MAX RATE[Msps]
Notes
1/2
45
due to antialiasing limitation
2/3
45
3/4
40
due to system clock limitation
5/6
36
7/8
34.2
5. Electrical Specification of LINK IC
5.1 BER vs Eb/No characteristics
INNER RATE Eb/No THRESHOLD
CRITERION
1/2
<< 4.5dB
2/3
<< 5.0dB
3/4
<< 5.5dB
5/6
<< 6.0dB
7/8
<< 6.4dB
Eb/No at BER=2x10
-4
@Viterbi decoder output
6. NIM Configuration
4
6.1 Host Interface
- Only I2C host interface is supported
6.2 WAGC Configuration
- level translation circuit to adjust dynamic range difference between ZIF IC and LINK IC
- Higher value corresponds to higher gain
6.3 I2C Bypass
- Tuner PLL can be accessed via I2C bypass out of LINK IC(internally connected)
4
See Fig. 3 and Fig. 4 for output stream timing diagram.
Page 9 of
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Digital Satellite NIM Specification 1.2
Feb. 2001
6.4 Pin Description
PIN NO.
MARK
DESCRIPTION
CURRENT(typ)
RIPPLE(max)
1
LNBA
Power input for LNB A
2
LNBB
Power input for LNB B
3
5V_RF
5V for RF-AMP and loop through
20mA
20mVp-p
4
AGC
AGC monitor
5
5V_ZIF
5V for 2
nd
AMP and ZIF IC
*
20mVp-p
6
VT
30V tuning voltage
7
5V_PLL
5V for ZIF IC, PLL IC and OSC
*
20mVp-p
8
I
I signal monitor
9
Q
Q signal monitor
10
GND
Ground
A
5VAGC
Power of AGC AMP
10mA
20mVp-p
B
GND
Ground
C
3.3V
Power of LINK IC
200mA
20mVp-p
D
F22
22KHz tone output
E
NC
Not connected
F
RESET
Reset (active LOW)
G
ERROUT
Frame error output (active HIGH)
H
FRAME_SYNC
Frame sync. (active HIGH)
I
DATA_VALID
Data valid (active HIGH)
J
DATA_CLK
Data clock
(falling or rising edge triggering)
K~R
DATA0~7
Byte data
S
SDA
I2C serial data
T
SCL
I2C serial clock
* PIN 5,7 TOTAL CURRENT: 200mA(TYP.)
Page 10 of
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Digital Satellite NIM Specification 1.2
Feb. 2001
Fig. 1 RF Tuner Block Diagram(ZIF version)
90
0
0
0
PLL
Q
I
LPF
LNB
LNB B
AGC from LINK IC
LPF
MITEL SL1925
SP5769
Page 11 of
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Digital Satellite NIM Specification 1.2
Feb. 2001
Fig. 2 LINK IC(HDM8513A) block diagram
Complex
Multiplier
Polyphase
Filter
Digital
Oscillator
Carrier
Tracking
Symbol
Tracking
Viterbi
Decoder
Deinter-
leaver
RS
Decoder
Descram-
bler
AGC
Detector
Dual 6-bit
ADC
SAMPLING
CLOCK
WITH EXT.
REFERENCE
sin
cos
Symbol Clock
Bit Clock
Word Clock
Data Clock
Data Out
QPSK Lock
Node Sync.
Frame Sync.
Frame Error
AGC out
PWM
encoder
I
Q
Page 12 of 12
Electronics Industries Co., Ltd
.
Digital Satellite NIM Specification 1.2
Feb. 2001
1
2
3
4
188
187
186
185
xx xx xx xx xx xx xx xx xx xx xx xx xx xx xx xx
D A T A _ C L K
D A T A _ S T B
F R A M E _ S Y N C
D A T A _ V A L I D
D A T A
t
su
t
h d
Fig. 3 Output Timing Diagram for DVB
1
2
3
4
1 4 4
1 4 3
1 4 2
1 4 1
x x
x x
x x
x x
x x
x x
x x
x x
x x
x x
x x
x x
x x
x x
x x
x x
D A T A _ C L K
D A T A _ S T B
F R A M E _ S Y N C
D A T A _ V A L I D
D A T A
t
su
t
h d
Fig. 4 Output Timing Diagram for DSS
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