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參數資料
| 型號： | U2730B-B |
| 英文描述： | L-Band Down-Converter for DAB Receivers |
| 中文描述： | L波段下為DAB接收器 |
| 文件頁數： | 1/12頁 |
| 文件大小： | 271K |
| 代理商： | U2730B-B |
U2730B-B
Preliminary Information
Rev. A1, 22-Jul-98
1 (12)
L-Band Down-Converter for DAB Receivers
Description
The U2730B-B is a monolithic integrated L-band down-
converter circuit fabricated in TEMIC’s advanced
UHF5S technology. Combining the functionality of
U2754B-B and U2755B-B in one integrated circuit, it
covers all functions of an L-band down-converter in a
DAB receiver. The device includes a gain-controlled
amplifier, a gain-controlled mixer, an output buffer, a
gain-control block, an L-band oscillator and a complete
frequency syntheziser unit. The frequency syntheziser
Features
Supply voltage: 8.5 V
RF frequency range: 1400 MHz to 1550 MHz
IF frequency range: 150 MHz to 250 MHz
Overall IM3 rejection: > 40 dB
Overall gain control range: typ. 30 dB
DSB noise figure: 9.5 dB
Gain-controlled amplifier
Gain-controlled L-band mixer
On-chip gain-control circuitry
Block Diagram
TH
block consists of an input buffer for the reference
frequency signal, a reference divider, an LO divider, a
tri-state phase detector, a loop filter amplifier, a lock
detector, a programmable charge pump, a test interface
and a control interface.
Electrostatic sensitive device.
Observe precautions for handling.
On-chip VCO, typical frequency 1261.568 MHz
Internal VCO can be overdriven by an external LO
On-chip frequency synthesizer
–
Fixed LO divider factor: 2464
–
Four reference divider factors selectable: 32, 35, 36, 48
–
Tristate phase detector with programmable charge pump
–
De-activation of tuning output programmable
–
Lock-status indication
–
Test interface
14749
U
VCO
RF
26
25
NRF
18
17
Tristate
phase
detector
Reference counter
32/35/36/48
RF counter
2464
19
Test interface
10
11
Programmable
charge pump
(50
μ
A / 200
μ
A)
Control interface
Lock
detector
Voltage
stabilizer
9
6, 7, 8, 21,
22, 23, 24
12
14
13
internal supply voltage for
frequency synthesizer
IF
TMD
TRD
3
VCC1
20
VCC3
28
VCC4
VCC2
GND
PLCK
PD
CD
4
5
15
16
2
27
VREF
TANK
REF
NREF
C
S
20k
AGC
Figure 1. Block diagram
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| U2730B-BFS | L-Band Down-Converter for DAB Receivers |
| U2730B-BFSG1 | L-Band Down-Converter for DAB Receivers |
| U2733B-C | Fractional-N Frequency Synthesizer for DAB Tuner |
| U2739M | DAB One-Chip Channel- and Source / Data Decoder |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| U2730B-BFS | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:L-Band Down-Converter for DAB Receivers |
| U2730B-BFSG1 | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:L-Band Down-Converter for DAB Receivers |
| U2730B-N | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:L-band Down-converter for DAB Receivers |
| U2730B-NFS | 功能描述:IC DOWN-CONV FOR DAB RCVR 28SSOP RoHS:否 類別:RF/IF 和 RFID >> RF 混頻器 系列:U2730 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:100 系列:- RF 型:W-CDMA 頻率:2.11GHz ~ 2.17GHz 混頻器數目:1 增益:17dB 噪音數據:2.2dB 次要屬性:- 電流 - 電源:11.7mA 電源電壓:2.7 V ~ 3.3 V 包裝:托盤 封裝/外殼:12-VFQFN 裸露焊盤 供應商設備封裝:12-QFN-EP（3x3） |
| U2730B-NFSG1 | 功能描述:IC DOWN-CONV FOR DAB RCVR 28SSOP RoHS:是 類別:RF/IF 和 RFID >> RF 混頻器 系列:U2730 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:100 系列:- RF 型:W-CDMA 頻率:2.11GHz ~ 2.17GHz 混頻器數目:1 增益:17dB 噪音數據:2.2dB 次要屬性:- 電流 - 電源:11.7mA 電源電壓:2.7 V ~ 3.3 V 包裝:托盤 封裝/外殼:12-VFQFN 裸露焊盤 供應商設備封裝:12-QFN-EP（3x3） |
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