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详细说明：RTL2832U_Datasheet_1.4(V4L).pdf，好不容易找到的RTL2832U的datasheetGVE REALTEK
RTL2832U
Datasheet
Table of contents
1. GENERAL DESCRIPTION
2. FEATURES
3. SYSTEM APPLICATIONS
4. BLOCK DIAGRAM
5. PIN ASSIGNMENTS…1
5.1. GREEN PACKAGE AND VERSION IDENTIFICATION
6. PIN
7. FUNCTIONAL DESCRIPTION
7. 1. ANALOG-TO-DIGITAL CONVERSION(ADC)
7.2
UTOMATIC GAIN CONTROL(AGC).
7. 3. DIGITAL DOWN CONVERSION
7.4.
RESAMPLER
GUARDⅠNTERⅤ AL REMOVAL…
7.6. FAST FOURIER TRANSFORM (FFT)
7. 7. SYNCHRONIZaTION
778888g
CHANNEL ESTIMATION…………
TRANSMISSION PARAMETER SIGNAL DECODER
7.10. EQUALIZATION……
7. 11. DE-INTERLEAVER, FEC DECODER, AND DESCRAMBLER
8. TUNER INTERFACE
10
8.1
AUTOMATIC GAIN CONTROL (AGC)
8.1.1. Register Name: loop gain
12
8.1.2. Register Name: if agc min/if uge mux/r ugc min/rf ugc max
8.1.3.R
yip
8.1.4.Reg
le: Krf
8.1.5. Register Name: if agc val/rf agc val
ADC INPUT(TUNER OUTPUT
14
TWO-WIRE INTERFACE BETWEEN THE TUNER AND THE RTL2832U
8.4
RTL2832U INTERNAL SWITCHING REGULATOR
16
9. REGISTER DESCRIPTIONS GENERAL).
17
ANALOG TO DIGITAL CONVERTER(ADC)
DC CANCELLATION AND IQ COMPENSATION
18
DIGITAL DOWN CONVERSION (DDC)
94
RESAMPLER
20
CO-CHANNEL INTERFERENCE REJECTION
21
9. 6. IMPULSE NOISE CANCELLATION
DIGITAL AUTOMATIC GAIN CONTROL ( DAGC)
22
9.8.
FFT MODE DETECTION
22
99
TIMING RECOVERY/CARRIER RECOVERY
23
9.10 cRYSTA
24
9.l
PID FILTER
24
10
REGISTER DESCRIPTIONS(8051 SYSTEM)……….….…
27
10.1. DEMODULATOR CONTROL REGISTER (DEMOD CTL, OOOOH)
10.2. GPIO RELATED REGISTERS (OOO I H--0008H)
/0.2
GPIO Output Value Register(GPO, 000/h
DVB-T COFDM Demodulator UsB 2.0
i
Truck D: JATR-2265-11 Rev 1.4
GVE REALTEK
RTL2832U
Datasheet
10.2.2. GPIO Input Value Register(GPL, 0002h)
30
10.2.3. GPIO Output Enable register(GPOE, 0003h)
10. 2.4. GP1O Direction Control Register(GPD, 0004h)
31
10.2.5. PAD Configuration Register for GP1O0-3(GP CFGO, 0007h)
32
10.2.6. PAD Configuration Register for GP1O4(GP CFG1, 0008h)
10.3. I-C MASTER CONTROL REGISTERS (0040H-0053H)
10.3. 1. /C Clock Register (12CCR, 0040h-0043h)
10.3.2. /C Master Control Register(12CMCR, 0044h1-0047h)
10.3.3. /C Master SCL Timing Register(12CMSTR, 0048h-004Bh)
10.3.4. /C Master Status Register(12CMSR, 004Ch-004Fh)
10.3.5. /C Master FIFO Register(12CMFR, 0050h-0053h)
36
REGISTER DESCRIPTIONS( USB INTERFACE)…....,..,.,,.…,…36
11.1. INTRODUCTION
11.2.Ⅴ ENDOR COMMANDS
36
11.3. SIE CONTROL REGISTER
38
11.4. USB SYSTEM CONTROL REGISTER( USB SYSCTL,0000H1)……,…,…,…
39
Endpoint A Configuration Register(USB EPA CFG, 0144h)
11. 4.2. Endpoint A Control Register(USB EPA CTL, 0148h)
40
11.43. Endpoint A Max Packet Size register(USB EPA MAXPKT,0158h)
11.4.4. Endpoint A F1lO Configuration Register(USB EPA F1lOCrG,0160h)
40
CHARACTERISTICS
41
2. 1. ABSOLUTE MAXIMUM RATINGS
12.2. DC CHARACTERISTICS
12.3. AC CHARACTERISTICS
12.4 CRYSTAL CONDITIONS
43
APPLICATION CIRCUITS
…4
14
MECHANICAL DIMENSIONS
45
14.1. MECHANICAL DIMENSIONS NOTES……
46
15. ORDERING INFORMATION
47
DVB-T COFDM Demodulator UsB 2.0
Truck D: JATR-2265-11 Rev 1.4
GVE REALTEK
RTL2832U
Datasheet
List of tables
TABLE 1 PIN DESCRIPTIONS
TABLE 2 AAGC REGISTER TABLE
TABLE 3. I-C REPEATER REGISTER TABLE
5
T△BLE4. ADC REGISTERS.
17
TABLE 5. DC CANCELLATION REGISTERS
TABLE 6. DIGITAL DOWN CONVERSION ( DDC)
TABLE 7. RESAMPLER
···
table 8. CO-CHANNEL INTERFERENCE REJECTION
TabLE 9. IMPULSE NOISE CANCELLATION
TABLE 10. DAGC REGISTERS
·········
···:···
TABLE 1L. FTT MODE DETECTION
TABLE 12. TIMING RECOVERY/ CARRIER RECOVERY
TABLE 13 PID FILTER
.25
TABLE 14. SYSTEM REGISTER DESCRIPTION
7
TABLE 15. DEMODULATOR CONTROL REGISTER(DEMOD CTL, 0000H)
29
TABLE 16. GPIO OUTPUT VALLE REGISTER (GPO, 0001H)
TABLE 17. GPIO INPUT VALUE REGISTER(GPL, 0002H).....
TABLE 18. GPIO OUTPUT ENABLE REGISTER(GPOE, 0003H
TABLE 19. GPIO DIRECTION CONTROL REGISTER(GPD, 0004H
TABLE 20. PAD CONFIGURATION REGISTER FOR GPIOO-3(GP CFGO, 0007H)
32
TABLE 21. PAD CONFIGURATION REGISTER FOR GP1O4(GP CFG1, 0008H)
32
TABLE 22. I-C CLOCK REGISTER (I2CCR, 0040H-0043H)
TABLE 23. I-C MASTER CONTROL REGISTER (I2CMCR, 0044H-0047H)
TABLE 24. I-C MASTER SCL TIMING REGISTER (I2CMSTR, 0048H-004BH)
TABLE 25. 1-C MASTER STATUS REGISTER (I2CMSR, 004CH-004FH
TABLE 26. IC MASTER FIFO REGISTER (12CMFR, O050H-0053H)
36
TABLE 27. VENDOR COMMANDS
TABLE28. DEFINITION OF‘ WINDEX’
TABLE 29. SIE CONTROL REGISTER
TABLE 30. USB SYSTEM CONTROL REGISTER (USB SYSCTL, O00OH)
TABLE 31. FNDPOINT A CONFIGURATION REGISTER (USB EPA CFG, 0144H)
TABLE 32. ENDPOINT A CONTROL REGISTER (USB EPA CTL, 0148H
40
TABLE 33. ENDPOINT A MAX PACKET SIZE REGISTER (USB EPA MAXPKT, 0I58H)
40
TABLE 34. ENDPOINT A FIFO CONFIGURATION REGISTER
40
TABLE 35. ABSOLUTE MAXIMUM RATINGS
TADLE 36. DC CHIARACTERISTICS
TAdLE 37. TWO-WIRE INTERFACE TIMING
42
TabLE 38. CRYSTAL CONDITIONS
43
TABLE 39. ORDERING INFORMATION
47
DVB-T COFDM Demodulator UsB 2.0
Truck ID:JATR-2265-11 Rev 1.4
GVE REALTEK
RTL2832U
Datasheet
List of Figures
FIGURE 1. BLOCK DIAGRAM
FIGURE 2. PIN ASSIGNMENTS(48-PIN QFN
FIGURE 3. IF OR ZERO-IF TUNER INTERFACE
非t
FIGURE 4. DELAYED AGC
FIGURE 5. TWO-WIRE INTERFACE BETWEEN THE TUNER AND RTL2832U
FIGURE 6. INTERNAL SWITCHING REGULATOR LAYOUT
FIGURE 7. PID FILTER FUNCTION OF THE RTL2832U
24
Figure 8. TWo-WIRE INTERFACE TIMING DIAGRAM
1
FiGuRE 9. APPLICATION CIRCUITS
4
DVB-T COFDM Demodulator UsB 2.0
Truck D: JATR-2265-11 Rev 1.4
GVE REALTEK
RTL2832U
Datasheet
1. General Description
The Rtl2832U is a high-performance dvB-T COFDM demodulator that supports a USB 2.0 interface
The rtl2832U complies with NorDig Unified 1.0.3, D-Book 5.0, and EN300 744 (ETSI Specification)
It supports 2K or 8K mode with 6, 7, and 8MHz bandwidth Modulation parameters, e.g., code rate, and
guard interval, arc automatically dctccted
The rtl2832U supports tuners at IF (Intermediate Frequency, 36 125MHz), low-IF (4.57MHZ),or
Zero-if output using a 288MHz crystal. Embedded with an advanced adc (analog-to-digital
Converter), the rtl2832U fcatures high stability in portable reception
The state-of-the-art rtL2832U features Realtek proprietary algorithms (patent-pending), including
superior channel estimation, co-channel interface rejection, long echo channel reception, and impulse
noisc cancellation, and provides an idcal solution for a wide range of applications for PC-TV, such as
USB dongle and miniCard/USB, and embedded system via USB interface.
DVB-T COFDM Demodulator UsB 2.0
Truck ID:JATR-2265-11 Rev 1.4
GVE REALTEK
RTL2832U
Datasheet
2。 Features
COFDM complying with Nordig Unified
Delayed AGC with programmable
1.0.3,D-book5.0. and etsi300-744
Take-Over Point(Top)
Supports multiplc if frcqucncics(4.57MHz
7-bit ADC for RF signals level measurement
or 36. 167MHZ)and spectrum inversion
Hardware MPeg-2 PId filters
Supports zero-IF input
a Infra-red port for remote control and
Single low-cost crystal for clock generation
wakc-up protocols supported arc
(士100ppm)
o Microsoft RCo protocol
Automatic transmission mode and guard
Q NEC, Sony, siRC, RC-5 protocol
interval detection
Eight gencral purposc 1/0 ports
Impulse noise cancellation circuits
■USB2.0 Interface
Automatic carrier recovery over a wide
Supports USB Full/High speed
range offset±800KHz)
o Configurable vendor information via
Superior performance with pre/post/long
external eEProm
echo profiles
Passes usB-If certification
a Embedded adjacent and co-channel
Signal 3. 3v external power is required
interference rejection circuit
a 48-pin QFN(6X6 mm)Green Package
3. System Applications
■ Portable dtv device
uSB dongle
■ Minicard
DVB-T COFDM Demodulator UsB 2.0
Truck ID:JATR-2265-11 Rev 1.4
GVE REALTEK
RTL2832U
Datasheet
4. Block Diagram
if to baseband
Sampling clock
Timing error
28 8 MHz
LPF
ADC
90
Resampler
Synchroniza
FT
Q
LPF
RE AGC
AGC
Frequency Error
IF AGC
Channel
Channe
MPEG 2
PID
MPEG2
USB
Filter
Decoding
De-Mapper
Estimation/
De-Interleaver
Equalizer
Figure 1
Block Diagram
DVB-T COFDM Demodulator UsB 2.0
Truck ID:JATR-2265-11 Rev 1.4
GVE REALTEK
RTL2832U
Datasheet
5. Pin assignments
Q
3里
LLLL
●导丹芋导导导8
VIP
36
GPIO3
VIN
35
M ERR
GNDA
34
VDD1
VQP
4
33
VDD3
QN
32
GPIO1
VINR
RTL2832U
31
GPIO2
VDDPLL
30
GPIO4
GNDPLL
8 LLLLLLL
29
GPIO5
TP_CKO 9
28
VDD1
XO
TXXX∨ TAIWAN
27
ENSWREG
26
SW VDD3
VDD1
12
25_VDD3
N98剁8
8出
898品59
Figure 2. Pin Assignments(48-Pin QFN)
51 Green package and version dentification
Green package is indicated by aG in the location marked"in Figure 2. The version number is shown
in the location marked 'V
DVB-T COFDM Demodulator UsB 2.0
Truck ID:JATR-2265-11 Rev 1.4
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