Balun Transformers / Wideband Transformers for Digital TV Tuners, WBL Series

(TCPWCH-2012BL)

Introduction (TCPWCH-2012BL)

Balun-Transformers (TCPWCH-2012BL) Provide The Key for Digital TV Tuners Design.

SMD EMI Filters & EMI Chokes (TCPWC)SMD EMI Filters & EMI Chokes (TCPWCH-2012BL)

A balun is a type of transformer. Balun transformer is a device which one pair of terminals is balanced, the currents are equal in magnitude and opposite in directions, such as a twisted pair cable. The other pair of terminals is unbalanced; one side is connected to electrical ground and the other carries the signal, such as a coaxial cable.

Token (TCPWCH-2012BL) has commercialized chip transformers (balun transformers), which are used to convert between unbalanced-balanced signals in the antenna inputs of TV tuner circuits for terrestrial digital broadcast compatible compact mobile devices.

By taking advantage of the advanced winding technology which using paired or/and triple wires enabling high uniformity, Token balun transformers for TV tuners have been made by winding wire around a fine ferrite core, and are widely used in large-scale devices such as TVs and desktop PCs.

SMD Balun/Wideband Transformers can be used between various parts of a wireless or cable communications system. Balun transformers (TCPWCH-2012BL) provide port impedance with 50 Ω or 75 Ω to match coaxial cables which have characteristic impedances of 50 Ω or 75 Ω. The supported frequencies cover the 45 MHz to 870 MHz range that includes the full terrestrial broadcasting band, and other 50 MHz ~ 1200 MHz, 1000 MHz ~ 1500 MHz, 950 MHz ~ 2150 MHz, and 400 MHz ~ 1800 MHz range to cover a wide variety of applications.

All (TCPWCH-2012BL) series comes a wide variety of options to meet your needs with halogen free and RoHS Directive. Token is able to customize and manufacture your request, with comprehensive application engineering and design support available for customers worldwide.

Download Complete Datasheet Balun Transformers / Wideband Transformers for Digital TV Tuners, WBL Series (TCPWCH-2012BL) PDF.

Balun Transformer on The Selection :

  1. Check the characteristic impedance of the antenna side (input side), and select 50 Ω or 75 Ω.
  2. 75 Ω is generally used for terrestrial wave systems, and 50 Ω for CATV and mobile systems.
  3. Check the characteristic impedance matching in order to achieve the fullest balun characteristics.
  4. However, the desired characteristics may not be achieved. This is because the actual impedance on the IC side does not exactly match the ideal impedance (50 Ω/75 Ω). In these cases, the impedance must be matched, or the balun must be reselected. Feel free to contact Token for details and solutions.

FEATURES :

  1. Wideband Frequency Range for AV equipment.
  2. Realized balun fuction in a ultra-small SMD design.
  3. Wound Chip constructure with standard 0805 size.

APPLICATIONS :

  1. Digital/Aanalog TV tuners.
  2. Cable TV tuners and Communication application.

Configurations & Dimensions (TCPWCH-2012BL)

Balun-Transformers (TCPWCH-2012BL) Structure diagram
Balun-Transformers (TCPWCH-2012BL) Structure diagram
Balun-Transformers (TCPWCH-2012BL) Structure diagram Unit: mm (Inch)
SIZE CODE A B C D1
TYP
D2
TYP
F
TYP
G
TYP
H
TYP
I
TYP
TCPWCH-2012BL
(0805)
2.00±0.20
(0.079±0.008)
1.20±0.20
(0.047±0.008)
1.20±0.20
(0.047±0.008)
0.45
(0.018)
0.40
(0.016)
0.40
(0.016)
1.20
(0.047)
0.80
(0.031)
2.60
(0.102)

Electrical Characteristics (TCPWCH-2012BL)

Part Number Freq Range (MHz) Port Impedance (Ω) Insertion Loss (dB)
Max.
CMRR (dB)
Min.
DC Resistance (Ω)
Max.
Rated Current (mA)
Max.
TCPWCH-2012BL-5011M01TR 45 ~ 870 50/50 1.2 20 0.80 200
TCPWCH-2012BL-7511M01TR 45 ~ 870 75/75 1.1 18 0.77 200
TCPWCH-2012BL-7511M02TR 50 ~ 1200 75/75 1.6 19 0.40 300
TCPWCH-2012BL-7511G01TR 1000 ~ 1500 75/75 1.4 20 0.42 290
TCPWCH-2012BL-7511G02TR 950 ~ 2150 75/75 1.5 20 0.42 290
TCPWCH-2012BL-7511G03TR 400 ~ 1800 75/75 2.0 10 0.42 290

Typical Characteristics Graph (TCPWCH-2012BL)


Order Codes (TCPWC)

TCPWC H - 2012 BL - 50 11 M01 TR
12 34 5667
Part Number
TCPWC
Shielding Type
H Shielding
 
Dimensions (mm)
2012 2.00×1.20×1.20 EIA0805
Purpose
BL Balun Transformers
 
Port impedance (Ω)
50 50/50Ω
75 75/75Ω
Impedance ratio
11 1:1
Frequency sequence
M01 45~870
M02 50~1200
G01 1000~1500
G02 950~2150
G03 400~1800
Package
P Bulk
TR Taping Reel