TQM879006A-PCB [QORVO]

1.4 â 2.7 GHz 1/4 W Digital Variable Amplifier;


型号：	TQM879006A-PCB
厂家：	Qorvo
描述：	1.4 â 2.7 GHz 1/4 W Digital Variable Amplifier
文件：	总11页 (文件大小：771K)
中文：	中文翻译
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TQM879006A

1.4 – 2.7 GHz 1/4 W Digital Variable Amplifier

General Description

The TQM879006A is a digital variable gain amplifier

(DVGA) featuring high linearity over the entire gain control

range. The amplifier module features the integration of a

low noise amplifier gain block, a digital-step attenuator

(DSA), along with a high linearity ¼W amplifier. The

module has the added features of integrating all matching

components with bias chokes and blocking capacitors. The

internal DSA offers 0.5 dB step, 6-bit, and 31.5 dB range

and is controlled with a serial periphery interface (SPI^TM).

28 Pin 6X6 mm leadless SMT Package

The TQM879006A features variable gain from 0 dB to 31.7

dB at 2 GHz, has +43 dBm Output IP3, and +24.5 dBm

P1dB. The amplifier also has a very low 1.5 dB Noise

Figure (at maximum gain) allowing it to be an ideal DVGA

for both receiver and transmitter applications. The amplifier

operates from a single +5V supply and is available in a

compact 28-pin 6x6 mm leadless SMT package.

Product Features

• 1.4-2.7 GHz Frequency Range

• 31.7 dB Maximum Gain at 2 GHz

• 31.5 dB Gain Range in 0.5 dB Steps

• +43 dBm Output IP3

• +24.5 dBm Output P1dB

• 1.5 dB Noise Figure at Max. Gain State

• Fully Internally Matched Module

• Integrated Blocking Capacitors, Bias Inductors

• 3-wire SPI Control Programming

The TQM879006A is pin compatible with the TQM829007

(0.6-1GHz, 0.25W DVGA) and TQM879008 (1.5-2.7 GHz,

0.5W DVGA). This allows one to size the right type of

device for specific system level requirements as well as

making the DVGA family ideal for applications where a

common PCB layout is used for different frequency bands.

Applications

Functional Block Diagram

• 3G / 4G Wireless Infrastructure

• CDMA, TD-CDMA, WCDMA, LTE

• Repeaters

• PTP Radio IF Chains

Ordering Information

Part No.

TQM879006ATR13*

Description

1.4−2.7 GHz Digital Variable Gain Amp

Fully Assembled Evaluation Board

Includes USB control board (EVH)

*Standard T/R size = 2500 pieces on a 13” reel

TQM879006A-PCB

Top View

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TQM879006A

1.4 – 2.7 GHz 1/4 W Digital Variable Amplifier

Absolute Maximum Ratings

Recommended Operating Conditions

Parameter

Rating

-55 to 150 °C

+23 dBm

+5.5 V

Parameter

Min Typ Max Units

Storage Temperature

RF Input Power,CW, 50Ω,T = 25°C

Vcc (pins 8, 14, 28)

Device Voltage (V_CC)

Case Temperature

Tj for >10⁶hours MTTF

+4.75 +5.0 +5.25

-40

+85

°C

+170

Digital Input Voltage

V_cc+ 0.5V

Electrical specifications are measured at specified test

conditions. Specifications are not guaranteed over all

recommended operating conditions.

Operation of this device outside the parameter ranges given

above may cause permanent damage.

Electrical Specifications

Test conditions unless otherwise noted: V_DD=+5V, Temp=+25°C, 50 Ω system.

Parameter

Conditions

Min

1400

Typ

Max

2700

Units

MHz

Operational Frequency Range

Test Frequency

Gain

2000

31.7

31.5

27.5

Gain Control Range

0.5 dB Step Size

3 wire SPI, Major State

3-wire SPI

±(0.3+5% of Attenuation setting)

Max

Attenuation Accuracy

Control Interface

Input Return Loss

Output Return Loss

Bit

+24.5

dBm

Output P1dB

Output IP3

Pout=+11 dBm/tone, Δf=1 MHz

+38

+43.0

1.5

Noise Figure

I/O Impedance

Ohm

Supply Voltage

Supply Current

174

215

°C/W

Thermal Resistance, θ_jc

Module (junction to case)

36.7

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TQM879006A

1.4 – 2.7 GHz 1/4 W Digital Variable Amplifier

Application Circuit (TQM879006A-PCB)

0.1uF

SPI_LE

SPI_DATA

SPI_CLK

GND

6X6_ 28PIN

GND

C12

C13

RF_IN

GND

RF_OUT

GND

Input

Output

0 

C13

C12

4.7uF

FB1

0 

FB2

0 

Notes:

1. For PCB Board Layout, see page 9 for more information.

2. All Components are of 0603 size unless stated otherwise.

3. For SPI Timing Diagram, see page 6.

4. 0 Ω jumpers may be replaced with copper traces in the target application layout.

5. Different ground pins are used for SPI (digital) and analog supply voltages.

6. The primary RF microstrip characteristic line impedance is 50 Ω.

7. The single power supply is used to provide supply voltage to AMP1 and AMP2.

Bill of Material − TQM879006A-PCB

Reference Des.

Value

n/a

Description

Manuf.

Qorvo

Part Number

TQM879006A

1.5-2.7 GHz ¼ W DVGA

Cap, Chip, 0603, 16V, X7R, 10%

Cap, Chip, 0603, 6.3V, X5R, 20%

Res, Chip, 0603, 1/16W, 5%

0.1 uF

4.7 uF

0 Ω

various

C12, C13

C1, C2, FB1, FB2

DNP

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TQM879006A

1.4 – 2.7 GHz 1/4 W Digital Variable Amplifier

Typical Performance, Maximum Gain State

Test conditions unless otherwise noted: V_CC=+5 V, I_CC=174 mA (typ), Temp=+25°C

Units

MHz

Parameter

Frequency

Typical Value

1500

30.8

1800

31.4

2000

31.7

2140

31.7

2350

31.6

2600

30.8

Gain

Input Return Loss

Output Return Loss

Output P1dB

19.5

+24.5

+43.0

1.5

+24.1

+40.2

1.35

+24.5

+42.0

1.4

+24.5

+43.0

1.5

+24.4

+41.0

1.6

+24.3

+40.5

1.8

dBm

Output IP3 (11 dBm/tone, ∆f = 1 MHz)

Noise Figure

Notes:

1. The evaluation board can be used with Qorvo’s USB interface board. Refer to Qorvo’s website for more information.

Typical Performance Plots

Gain vs. Freq over Attenuation States

Gain vs. Freq over Temperature

Maximum Gain State

Temp. = 25^oC

+85°C

+25°C

−40°C

0dB

4dB

0.5dB

8dB

1dB

2dB

16dB

31.5dB

-5

1.3

1.5

1.7

1.9

2.1

2.3

2.5

2.7

1.3

1.5

1.7

1.9

2.1

2.3

2.5

2.7

Frequency (GHz)

S11 vs. Freq over Attenuation States

S11 vs. Freq over Temperature

-5

Maximum Gain State

0dB

4dB

0.5dB

8dB

1dB

2dB

+85°C

+25°C

−40°C

16dB

31.5dB

-10

-15

-20

-25

-30

-10

-15

-20

-25

-30

Temp. = 25^oC

1.3

1.5

1.7

1.9

2.1

2.3

2.5

2.7

1.3

1.5

1.7

1.9

2.1

2.3

2.5

2.7

Frequency (GHz)

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TQM879006A

1.4 – 2.7 GHz 1/4 W Digital Variable Amplifier

Typical Performance Plots

S22 vs. Freq over Attenuation States

Temp. = 25^oC

S22 vs. Freq over Temperature

Maximum Gain State

-5

+85°C

+25°C

−40°C

-10

-15

-20

-25

-30

-10

-15

-20

-25

-30

0dB

4dB

0.5dB

8dB

1dB

2dB

16dB

31.5dB

1.3

1.5

1.7

1.9

2.1

2.3

2.5

2.7

1.3

1.5

1.7

1.9

2.1

2.3

2.5

2.7

Frequency (GHz)

OIP3 vs. Frequency

1 MHz Tone Spacing

Pout/Tone = 11dBm

P1dB vs. Frequency

+85°C

+25°C

−40°C

+85°C

+25°C

−40°C

1.3

1.5

1.7

1.9

2.1

2.3

2.5

2.7

1.3

1.5

1.7

1.9

2.1

2.3

2.5

2.7

Frequency (GHz)

Noise Figure vs. Frequency

Attenuation Accuracy vs. Attenuation

Vdd = 5 V , Temp. = 25^oC

4.0

3.0

2.0

1.0

0.0

2.0

1.5

+85°C

+25°C

−40°C

1.0

0.5

0.0

-0.5

-1.0

-1.5

-2.0

1.8GHz

1.9GHz

2.0GHz

2.4GHz

2.7 GHz

1.3

1.5

1.7

1.9

2.1

2.3

2.5

2.7

Frequency (GHz)

Attenuation (dB)

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TQM879006A

1.4 – 2.7 GHz 1/4 W Digital Variable Amplifier

Serial Control Interface

Serial Control Timing Characteristics (Test conditions: V_CC= +5 V, T_LEAD=25°C)

Units

MHz

Parameter

Clock Frequency

Condition

50% Duty Cycle

Min

Max

LE Setup Time, t_LESUP

LE Pulse Width, t_LEPW

DATA set-up time, t_SDSUP

DATA hold-time, t_SDHLD

LE Pulse Spacing t_LE

Propagation Delay t_PLO

after last CLK rising edge

before CLK rising edge

after CLK rising edge

LE to LE pulse spacing

LE to Parallel output valid

630

Serial Control DC Logic Characteristics (Test conditions: V_CC= +5 V, T_LEAD=25°C)

Parameter

Condition

Min

Max

Units

Input Low Voltage, V_IL

Input High Voltage, V_IH

Input Current, I_IH/ I_IL

0.8

2.4

-10

Vcc

On DATA, LE and CLK

+10

µA

DATA (MSB in First 6-Bit Word) Control Logic Truth Table

MSB

LSB

6-Bit Control Word to DSA

Gain Relative to Maximum Gain

Reference : IL

0 dB

0.5 dB

1 dB

2 dB

4 dB

8 dB

16 dB

31.5 dB

Any combination of the possible 64 states will provide a reduction in gain of approximately the sum of the bits selected.

Serial Control Interface Timing Diagram

CLK is disabled when LE is high

D5-D0

MSB-LSB

D5-D0

MSB-LSB

tPLO

CLK

DATA

SERIN

tLESUP

tSDSUP

tSDHLD

tLEPW

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TQM879006A

1.4 – 2.7 GHz 1/4 W Digital Variable Amplifier

Detailed Device Description

The TQM879006A is a 50 Ω internally matched digital variable gain amplifier (DVGA) featuring high linearity over the

entire gain control range. The amplifier module features the integration of a low noise amplifier gain block, a digital step

attenuator (DSA), along with a high linearity ¼W amplifier as shown in the functional diagram below. The module is

unconditionally stable. Internal blocking capacitors and bias structures keep external parts count to a minimum. The

DVGA has an operational frequency range from 1.4 - 2.7 GHz.

Functional Schematic Diagram

DC Block

DSA

SPI

AMP1

AMP2

Pin 16

Pin 6

DC Block

DC Bias

Pin 8

Pin 1

Pin 2

DATA

Pin 3

CLK

Pin 14

Where M = Matching Network.

Chain Analysis Table

This table provides the typical performance of individual stages in the module as well as overall module performance.

Parameter

Gain

AMP1

DSA

-1.8

1.8

AMP2

14.5

4.0

Overall Module

Units

31.7

1.3

1.5

OIP3

P1dB

Icc

dBm

28.5

2.0

24.5

174

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TQM879006A

1.4 – 2.7 GHz 1/4 W Digital Variable Amplifier

Device Detailed Description

AMP1

AMP1 is a wide band low noise amplifier gain block in DVGA module. The amplifier provides 19 dB gain, 1.3 dB noise

figure, +36 dBm OIP3 at 2.0 GHz while only drawing 85 mA current. External DC blocks and biasing is not required. AMP1

is DC blocked internally and is connected internally to three bypass capacitors (22 pF, 100 pF, 0.01 uF) followed by 22 nH

inductor inside the module as shown in the figure below.

Pin 8

0.1 uF

100 pF

AMP1

68 nH

To DSA

(internal)

Pin 6

DC Block

DSA (Digital Step Attenuator)

DVGA has a serial digital step attenuator that is controlled with 6-bit serial periphery interface (SPI^TM) and has 0.5 dB step

size with 31.5 dB attenuation range. This 50-ohm RF DSA maintains high attenuation accuracy over frequency and

temperature. “000000” represents maximum attenuation state. External bypass capacitors are needed to compensate the

inductance effect associated with long transmission lines on the evaluation board.

AMP2

AMP2 is high linearity ¼-W amplifier in DVGA module. The amplifier provides 14.4 dB gain, +24.5 dBm P1dB, +43 dBm

OIP3 at 2.0 GHz while only drawing 87 mA current. The amplifier is optimized over 1.4 – 2.7 GHz bandwidth using internal

matching components. AMP2 is DC blocked internally and is connected internally to two bypass capacitors (22 pF, 0.01

uF) followed by an 18 nH inductor inside the module as shown in the figure below. External DC blocks and biasing is not

required.

Pin 14

0.01 uF

22 pF

AMP2

18 nH

From DSA

(internal)

Pin 16

DC Block

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TQM879006A

1.4 – 2.7 GHz 1/4 W Digital Variable Amplifier

Pin Configuration and Description

Pin No.

Symbol

Description

Serial Latch Enable Input. When LE is high, latch is clear and content of SPI control the

attenuator. When LE is low, data in SPI is latched.

Serial data input. The data and clock pins allow the data to be entered serially into SPI

and is independent of Latch state.

DATA

CLK

N/C

Serial clock input.

4, 22

No internal connection. connect or open. This pin is not connected in this module

Input, matched to 50 ohms between 1800 and 2700 MHz. Internally DC blocked.

RFIN

Supply Voltage to AMP1. This pin is connected internally to 3 bypass capacitors (22pF,

100 pF, 0.01uF) followed by a 22 nH inductor inside the module.

VCC_AMP1

Supply Voltage to AMP2. This pin is connected internally to 2 bypass capacitors (22pF,

0.01uF) followed by an 18 nH inductor inside the module.

VCC_AMP2

RFOUT

Output, matched to 50 ohms between 1800 and 2700 MHz. Internally DC blocked.

Supply voltage for SPI and DSA chip. This pin is connected to 0.1uF bypass capacitor

internally.

VCC_SPI

GND

All other Pins

RF/DC Ground Connection

Evaluation Board PCB Information

Qorvo PCB 1080956 Material and Stack-up

1 oz. Cu top layer

Nelco N-4000-13

0.014"

ε_r=3.7 typ.

1 oz. Cu inner layer

0.062" ± 0.006"

Finished Board

Thickness

Core

1 oz. Cu inner layer

0.014"

Nelco N-4000-13

1 oz. Cu bottom layer

50 ohm line dimensions: width = .030”, spacing = .036”

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TQM879006A

1.4 – 2.7 GHz 1/4 W Digital Variable Amplifier

Package Marking and Dimensions

Marking: Part number – TQM879006A

Lot Code – YYWW CCCC

Trace Code – Up to 6 characters

TQM879006A

YYWW CCCC

Trace Code

Notes:

1. All dimensions are in millimeters. Angles are in degrees.

2. Except where noted, this part outline conforms to JEDEC standard MO-220, Issue E (Variation VGGC) for thermally enhanced

plastic very thin fine pitch quad flat no lead package (QFN).

3. Dimension and tolerance formats conform to ASME Y14.4M-1994.

4. The terminal #1 identifier and terminal numbering conform to JESD 95-1 SPP-012.

PCB Mounting Pattern

30X

PACKAGE

OUTLINE

28X 0.40

0.70 PITCH

0.35

28X 0.73

4.20

0.76

0.38

0.66

4.20

COMPONENT SIDE

Notes:

1. All dimensions are in millimeters. Angles are in degrees.

2. Use 1 oz. copper minimum for top and bottom layer metal.

3. Vias are required under the backside paddle of this device for proper RF/DC grounding and thermal dissipation. We recommend

a 0.35mm (#80/.0135") diameter bit for drilling via holes and a final plated thru diameter of 0.25 mm (0.10”).

4. Ensure good package backside paddle solder attach for reliable operation and best electrical performance.

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TQM879006A

1.4 – 2.7 GHz 1/4 W Digital Variable Amplifier

Handling Precautions

Parameter

Rating

Standard

ESDꢀ–ꢀHuman Body Model (HBM)

Class 1A

ESDAꢁ/ꢁJEDEC JS-001-2014

ESDA / JEDEC JS-002-2014

IPC/JEDEC J-STD-020

Caution!

ESD-Sensitive Device

ESDꢀ–ꢀCharged Device Model (CDM) Class C3

MSLꢀ–ꢀMoisture Sensitivity Level

Level 3

Solderability

Compatible with lead-free (260°C max. reflow temp.) soldering process.

Solder profiles available upon request.

Contact plating: Electrolytic Plated Au over Ni

RoHS Compliance

This part is compliant with 2011/65/EU RoHS directive (Restrictions on the Use of Certain Hazardous Substances in Electrical and

Electronic Equipment) as amended by Directive 2015/863/EU.

This product also has the following attributes:

• Lead Free

• Halogen Free (Chlorine, Bromine)

• Antimony Free

• TBBP-A (C₁₅H₁₂Br₄0₂) Free

• PFOS Free

• SVHC Free

Contact Information

For the latest specifications, additional product information, worldwide sales and distribution locations:

Web: www.qorvo.com

Tel: 1-844-890-8163

Email: customer.support@qorvo.com

For technical questions and application information: Email: appsupport@qorvo.com

Important Notice

The information contained herein is believed to be reliable; however, Qorvo makes no warranties regarding the information contained

herein and assumes no responsibility or liability whatsoever for the use of the information contained herein. All information contained

herein is subject to change without notice. Customers should obtain and verify the latest relevant information before placing orders for

Qorvo products. The information contained herein or any use of such information does not grant, explicitly or implicitly, to any party any

patent rights, licenses, or any other intellectual property rights, whether with regard to such information itself or anything described by

such information. THIS INFORMATION DOES NOT CONSTITUTE A WARRANTY WITH RESPECT TO THE PRODUCTS DESCRIBED

HEREIN, AND QORVO HEREBY DISCLAIMS ANY AND ALL WARRANTIES WITH RESPECT TO SUCH PRODUCTS WHETHER

EXPRESS OR IMPLIED BY LAW, COURSE OF DEALING, COURSE OF PERFORMANCE, USAGE OF TRADE OR OTHERWISE,

INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

Without limiting the generality of the foregoing, Qorvo products are not warranted or authorized for use as critical components in medical,

life-saving, or life-sustaining applications, or other applications where a failure would reasonably be expected to cause severe personal

injury or death.

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TQM879006A-PCB [QORVO]

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