Temp Comp Attenuators

Temperature Compensation Attenuator
International invention patent
US Utility patent No. US 7,990,230 B2  
EU, China, Taiwan patented  
Applications:
● Power Amplifier
● Low Noise Amplifier
● Gain Blocks
● Optical Transceiver Module
● MMIC Amplifiers
● WLAN (2.4GHz or 5.8GHz)
● WiMAX
● UWB
● Mixers
● Power Dividers
● Satellite Communication
● Directional Couplers
● Broadcast (TV & Radio)
● Radar
Features:
● Frequency range: DC to 3GHz,DC to 6GHz,DC to 12.4GHz,DC to 18GHz,DC to 20GHz,16 to 36GHz
● Power rating: 100mW,200mW,2W
● Impedance: 50O¸ or 75Ω¸
● Operating temperature: -55℃ to +150℃
● Low cost and small size.It can be easily designed in Rf power amplifier to replace AGC loop circuit, which is easy for the regeneration of RF circuit.
● Adopting 100% laser trimming, high attenuation accuracy.
● High reliability. Adopting advanced thick film & thin film technology through firing at the high temperature of 850 ℃.
● Zero Distortion, and no phase changes and time delay caused by temperature variation.
● Temperature compensation and RF isolation, which are more suitable for multi-stage power amplifiers.
● No extra IP3 exists and suitable for linear power amplifier.
● Tape and reel package is available, which is convenient for SMT
Series introduction
TCA Series....................DC~6GHz,2W,50 Ohms
STCA Series...................DC~6GHz,100mW,50 Ohms
MTCA Series...................DC~18GHz,200mW,50 Ohms
BTCA Series...................DC~6GHz,2W,75 Ohms
BSTCA Series..................DC~3GHz,100mW,75 Ohms
PTCA Series...................DC~3GHz,2W,50or75 Ohms
WTCA Series...................DC~20GHz,50 Ohms
KTCA Series...................16~36GHz,50 Ohms
Green TCA Series...................DC~3GHz,DC~6GHz,DC~12.4GHz,DC~18GHz,100mW,200mW,2W,50or75 Ohms
 
Excellent RF-Temperature Characteristic of TCA series at 1GHz, 3GHz and 6GHz

Yantel`s temperature compensation attenuator has a wide attenuation variable range in the temperature from -55 ℃ to +150℃ at 1GHz, 3GHz and 6GHz. Meanwhile, the attenuation tolerance and VSWR is very low at 1GHz, 3GHz and 6GHz.This acteristic makes it more suitable in wide frequency range application, like 5.3~5.8GHz WLAN and UWB. When customers look for higher frequency for good telecommunication, Yantel can offer the best solution of excellent RF performance (at 1GHz, 3GHz and 6GHz) and competitive cost.
 

Part No. Description

 TCA 
Series
 **  
Frequency
 **
Attenuation 
 ** 
Temperature coefficient code
 ** 
Metallization Options
 * 
Termination Plating Options
TCA,STCA,MTCA,WTCA,KTCA
PTCA, BTCA or BSTCA
03,06,12
18 or 20
01 to 10
(1dB to 10dB)
(N3 to N10) or (P3 to P8)
Planar(no code),W1,W3,WB1,WB2 or G
(no code)=Lead free or
(S)=Lead(Pb)
 
Example: P/N STCA0603N9W3 is STCA series, frequency range DC to 6GHz, 3dB attenuation @25℃,
temperature coefficient of attenuation -0.009 dB/dB/℃, triple wrap terminations lead free.
Metallization & Plating Options
● Planar(no code): planar terminal.
● Single wrap(W1): metallization wrap ground terminal.
● Triple wrap(W3): metallization wrap input, output and ground terminal.
● Wire bond(WB1): metallization wrap ground terminal, input and output terminal have gold metallization
for wire bonding.
● Lead(Pb) (S): Lead terminals improve solderability (available on planar, W3 & W1 options)
● Lead free(no code): Lead free terminals. (planar, W1 and W3 are available)
● Planar gold(G): planar terminal with gold metallization for wire bonding.
 
Material Specification
● Substrate: Alumina(Al2O3)
● Resistive material: Thick film
Terminal material: Thick film, nickel barrier with pure tin
plate(lead free) or with tin(Sn90) plate(10% lead contained), or gold finish.
● Protective Coating: Thick film (ethyl acetate)


Temperature Compensation Attenuator Function Data
◆Temperature Compensation Attenuator-Product Introduction

◆Part No. Comparison of Temperature Compensation Attenuator between Yantel and E company

◆Part No. Comparison of Temperature Compensation Attenuator between Yantel and Y company

◆P/N Selection Confirmation Table for Yantel Temperature Compensation Attenuator

◆Temperature Compensation Attenuator-Selector Tool

◆Temperature Compensation Attenuator-Installation Application Diagram

◆Temperature Compensation Attenuator-Reliability Test

◆Lead Free Reflow Profile

TCA Series  
Specifications  
● Frequency range:
DC to 6GHz
● Operating temperature:
-55℃ to 150℃
● Impedance: 50Ω¸
● Power rating: 2W
● Size: 3.1×3.7×0.53(mm), type I
Note: For military product, the suffix"J" is added to the Part No. (For example: TCA0603N9J) .
However, no such suffix for commercial product.
Part No.
Attenuation
(dB)
Temperature
Coefficient Code
Temperature Coefficient
of Attenuation (dB/dB/℃)
Max.
VSWR (:1) @1GHz
Attenuation
Accuracy
(dB)
1
N3~N9
-0.003~ -0.009
1.20
±0.5
2
N3~N10
-0.003~ -0.010
1.20
±0.5
3
N3~N10
-0.003~ -0.010
1.20
±0.5
4
N3~N10
-0.003~ -0.010
1.20
±0.5
5
N3~N10
-0.003~ -0.010
1.20
±0.5
6
N3~N10
-0.003~ -0.010
1.20
±0.5
7
N3~N10
-0.003~ -0.010
1.20
±0.5
8
N3~N10
-0.003~ -0.010
1.20
±0.5
9
N3~N10
-0.003~ -0.010
1.20
±0.5
10
N3~N10
-0.003~ -0.010
1.20
±0.5
① Note: For example 4N9, when temperature changes by 1℃, the attenuation variation equals 4dB X 0.009
(temperature coefficient code) X 1℃ = 0.036dB. When temperature changes by 100℃, the attenuation variation equals
4dB X 0.009 X 100℃ = 3.6dB.
 
STCA Series  

Specifications  
● Frequency range:
DC to 6GHz
● Operating temperature:
-55℃ to 150℃
● Impedance: 50Ω¸
● Power rating: 100mW
● Size: 1.25×2.0×0.45(mm), type III
Note: For military product, the suffix"J" is added to the Part No. (For example: STCA0603N9J) .
However, no such suffix for commercial product.
Part No.
Attenuation (dB)
Temperature
Coefficient Code
Temperature Coefficient
of Attenuation (dB/dB/℃)
Max.
VSWR (:1) @1GHz
Attenuation
Accuracy
(dB)
1
N3~N9
-0.003~ -0.009
1.20
±0.5
2
N3~N9
-0.003~ -0.009
1.20
±0.5
3
N3~N9
-0.003~ -0.009
1.20
±0.5
4
N3~N9
-0.003~ -0.009
1.20
±0.5
5
N3~N9
-0.003~ -0.009
1.20
±0.5
6
N3~N9
-0.003~ -0.009
1.20
±0.5
7
N3~N9
-0.003~ -0.009
1.20
±0.5
8
N3~N9
-0.003~ -0.009
1.20
±0.5
9
N3~N9
-0.003~ -0.009
1.20
±0.5
10
N3~N9
-0.003~ -0.009
1.20
±0.5
 
BTCA Series
(Suitable for Optical Transceiver Module in Broadcast Application)


Specifications
● Frequency range:
DC to 6GHz
● Operating temperature:
-55℃ to 150℃
● Impedance: 75Ω¸
● Power rating: 2W
● Size: 3.1×3.7×0.53(mm), type I
Part No.
Attenuation (dB)
Temperature
Coefficient Code
Temperature Coefficient
of Attenuation (dB/dB/℃)
Max.
VSWR (:1) @1GHz
Attenuation
Accuracy
(dB)
1
N3~N9
-0.003~ -0.009
1.20
±0.5
2
N3~N9
-0.003~ -0.009
1.20
±0.5
3
N3~N9
-0.003~ -0.009
1.20
±0.5
4
N3~N9
-0.003~ -0.009
1.20
±0.5
5
N3~N9
-0.003~ -0.009
1.20
±0.5
6
N3~N9
-0.003~ -0.009
1.20
±0.5
MTCA Series

Specifications



●Frequency Range:
1) Planar series:DC-18GHz( N3~N5 );DC-12.4GHz(N6~N9 )
2) WB1 Series:DC-18GHz( N3~N5 );DC-12.4GHz(N6~N9 )
3) W1/W3 Series: DC to 12.4GHz
● Single wrap(W1): metallization wrap ground terminal.
● Triple wrap(W3): metallization wrap input, output and ground terminal.
● Wire bond(WB1): (MTCA only)metallization wrap ground terminal, input and output terminal have gold metallization
for wire bonding.
● Operating temperature:-55℃ to 150℃
● Impedance: 50Ω¸
● Power rating: 200mW
● Size: 1.52×1.91×0.4(mm), type II
Part No.
Attenuation (dB)
Temperature
Coefficient Code
Temperature Coefficient
of Attenuation (dB/dB/℃)
Max.
VSWR (:1) @1GHz
Attenuation
Accuracy
(dB)
1
N3~N7
-0.003~ -0.007
1.30
±0.5
2
N3~N9
-0.003~ -0.009
1.30
±0.5
3
N3~N9
-0.003~ -0.009
1.30
±0.5
4
N3~N9
-0.003~ -0.009
1.30
±0.5
5
N3~N9
-0.003~ -0.009
1.30
±0.5
6
N3~N9
-0.003~ -0.009
1.30
±0.5
7
N3~N9
-0.003~ -0.009
1.30
±0.5
8
N3~N9
-0.003~ -0.009
1.30
±0.5
9
N3~N9
-0.003~ -0.009
1.30
±0.5
10
N3~N9
-0.003~ -0.009
1.30
±0.5
 
WTCA Series  
WB2-Specifications  

   
● Wide frequency range: DC to 20 GHz
● Operating temperature: -55℃ to 150℃
● Impedance: 50Ω¸
● Power rating: 200mW
● Size: 1.52×1.81×0.38(mm)
Part No.
Attenuation (dB)
Temperature
Coefficient Code
Temperature Coefficient
of Attenuation (dB/dB/℃)
Max.
VSWR (:1) @1GHz
Attenuation
Accuracy
(dB)
2
N3~N7
-0.003~ -0.007
1.30 Max DC-10GHz @25℃
1.45 Max 10-18GHz @25℃
1.65 Max 18-20GHz @25℃
±0.5
3
N3~N9
-0.003~ -0.009
±0.5
4
N3~N9
-0.003~ -0.009
±0.5
5
N3~N10
-0.003~ -0.010
±0.5
6
N3~N10
-0.003~ -0.010
±0.5
7
N3~N10
-0.003~ -0.010
±0.5
   
SMT-Specifications  

 
● Wide frequency range: DC to 20 GHz
● Operating temperature: -55℃ to 150℃
● Impedance: 50Ω¸
● Power rating: 200mW
● Size: 1.52×1.91×0.38(mm)
Part No.
Attenuation (dB)
Temperature
Coefficient Code
Temperature Coefficient
of Attenuation (dB/dB/℃)
Max.
VSWR (:1) @1GHz
Attenuation
Accuracy
(dB)
2
N3~N7
-0.003~ -0.07
1.30 Max DC-10GHz @25℃
1.45 Max 10-20GHz @25℃
±0.5
3
N3~N7
-0.003~ -0.07
±0.5
4
N3~N7
-0.003~ -0.07
±0.5
5
N3~N7
-0.003~ -0.07
±0.5
6
N3~N7
-0.003~ -0.07
±0.5
7
N3~N7
-0.003~ -0.07
±0.5
8
N3~N7
-0.003~ -0.07
±0.5
9
N3~N7
-0.003~ -0.07
±0.5
10
N3~N7
-0.003~ -0.07
±0.5
 
KTCA Series  
Specifications

● Wide frequency range: 16 to 36 GHz
● Operating temperature: -55℃ to 150℃
● Impedance: 50Ω¸
● Power rating: 100mW
● Size: 3.05×1.65×0.28(mm)
Part No.
Attenuation (dB)
Temperature
Coefficient Code
Temperature Coefficient
of Attenuation (dB/dB/℃)
Typ.
VSWR (:1) @25℃
Attenuation
Accuracy
(dB)
2
N3~N7
-0.003~ -0.007
1.35
±0.5
3
N3~N7
-0.003~ -0.007
1.35
±0.5
4
N3~N7
-0.003~ -0.007
1.35
±0.5
5
N3~N7
-0.003~ -0.007
1.35
±0.5
6
N3~N7
-0.003~ -0.007
1.35
±0.5
PTCA Series
(Thermal compensation acteristics with positive coefficients)
   
Specifications  
● Frequency range:
DC to 3GHz
● Operating temperature:
-55℃ to 150℃
● Impedance: 50 or 75Ω¸
● Power rating: 2W
● Size: 3.1×3.7×0.53(mm), type I
● Positive Coefficients
Part No.
Attenuation (dB)
Temperature
Coefficient Code
Temperature Coefficient
of Attenuation (dB/dB/℃)
Max.
VSWR (:1) @1GHz
Attenuation
Accuracy
(dB)
PTCA0301P*
1
P3~P9
+0.003~ +0.009
1.20
±0.5
PTCA0302P*
2
P3~P9
+0.003~ +0.009
1.20
±0.5
PTCA0303P*
3
P3~P9
+0.003~ +0.009
1.20
±0.5
PTCA0304P*
4
P3~P9
+0.003~ +0.009
1.20
±0.5
PTCA0305P*
5
P3~P9
+0.003~ +0.009
1.20
±0.5
PTCA0306P*
6
P3~P9
+0.003~ +0.009
1.20
±0.5
 
BSTCA Series  

Specifications  
● Frequency range:
DC to 3GHz
● Operating temperature:
-55℃ to 150℃
● Impedance: 75Ω¸
● Power rating: 100mW
● Size: 1.25×2.0×0.45(mm), type III
Part No.
Attenuation (dB)
Temperature
Coefficient Code
Temperature Coefficient
of Attenuation (dB/dB/℃)
Max.
VSWR (:1) @1GHz
Attenuation
Accuracy
(dB)
1
N3~N7
-0.003~ -0.007
1.20
±0.5
2
N3~N9
-0.003~ -0.009
1.20
±0.5
3
N3~N9
-0.003~ -0.009
1.20
±0.5
4
N3~N9
-0.003~ -0.009
1.20
±0.5
5
N3~N9
-0.003~ -0.009
1.20
±0.5
6
N3~N9
-0.003~ -0.009
1.20
±0.5
 
   
Green TCA Series
(Lead far less than 1000ppm, no need RoHs exemption.)

Real Lead-free Green Temp. Comp. Attenuator
Features:
● TCA, STCA, MTCA and BTCA (lead far less than 1000ppm)
are available.
● Frequency range: DC ~ 3GHz,DC ~ 6GHz£¬DC ~ 12.4GHz£¬DC ~ 18GHz£¬DC ~ 20GHz
● Input power: 100mW, 200mW, 2W
● Impedance: 50Ω¸ or 75Ω¸
● Wide attenuation variable range at temperature from -55℃ to +150℃.
● Low attenuation tolerance and low VSWR.
● 10 attenuations from 1dB to 10dB, and 7 variation slope acteristics from
N3 to N9 per attenuation are offered as standard products.
● Variation slope is calculated by linear regression
● High reliability using thick film package
Advantages:
● Competitive pricing
● Quick delivery
● Excellent RF acteristics
● Customized design such as N10, N11 of temp. comp. coefficient are available by request.
   
Planar Configuration (unit: mm)  

TCA Recommended Layout  

 


Application Schematic
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