HMC926LP5E
v00.0810
0.5 dB LSB 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 700 - 2700 MHz
Features
Gain Control Range (in 0.5 dB Steps): @ 900 MHz, +6.5 to +38 dB @ 1900 MHz, +1 to +32.5 dB @ 2600 MHz, -4 to +27.5 dB High Output IP3: +45 dBm Noise Figure: 4.4 dB Convenient Serial Control Interface ±0.25 dB Typical Step Error 32 Lead 5x5 mm SMT Package: 25 mm2
Typical Applications
The HMC926LP5E is ideal for: • Cellular Infrastructure • WiBro, WiMAX and LTE/4G • Microwave Radio & VSAT • Test Equipment and Sensors • IF & RF Applications
12
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
Functional Diagram
General Description
The HMC926LP5E is a digitally controlled variable gain amplifier which operates from 700 MHz to 2700 MHz, and can be programmed to provide between +6.5 dB to +38 dB of gain, in 0.5 dB steps at 900 MHz. Gain control range is from +1 dB to +32.5 dB at 1900 MHz and from -4 dB to +27.5 dB at 2600 MHz. The HMC926LP5E delivers noise figure of 4.4 dB in its maximum gain state, with output IP3 of up to +45 dBm. The HMC926LP5E features a serial only gain control interface, a user selectable power up state, and a serial output for cascading other Hittite serially controlled components.
Electrical Specifications, TA = +25° C, Vs = +5V
Parameter Frequency Range Gain (Maximum Gain State) Gain Control Range Input Return Loss Output Return Loss Attenuation Accuracy: (Referenced to Maximum Gain State) Output Power for 1 dB Compression Output Third Order Intercept Point (Pout = 0 dBm per tone, 1 MHz spacing) Noise Figure Switching Characteristics tON (50% CTL to 90% RF) / tOFF (50% CTL to 10% RF) Total Current 162 36 900 MHz Tune [1] Min. Typ. 0.7 - 1.2 38 31.5 16 13 ± (0.4 + 5% of Attenuation Setting) 21 24 45 4.4 218 262 162 30 Max. 1900 MHz Tune [2] Min. Typ. 1.8 - 2.4 32.5 31.5 19 10 ± (0.5 + 6% of Attenuation Setting) 22 25 40 4.8 218 262 162 25.5 Max. 2600 MHz Tune [3] Min. Typ. 2.3 - 2.7 27.5 31.5 13 13 ± (0.5 + 6% of Attenuation Setting) 22 25 45 4.9 400 / 150 218 262 Max. Units GHz dB dB dB dB dB dBm dBm dB
ns mA
[1] See Evaluation PCB and Application Circuit for 900 MHz Tune. Unless otherwise noted, typical performance at 900 MHz, with maximum gain state. [2] See Evaluation PCB and Application Circuit for 1900 MHz Tune. Unless otherwise noted, typical performance at 1900 MHz, with maximum gain state. [3] See Evaluation PCB and Application Circuit for 2600 MHz Tune. Unless otherwise noted, typical performance at 2600 MHz, with maximum gain state.
12 - 1
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or apps@hittite.com
HMC926LP5E
v00.0810
0.5 dB LSB 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 700 - 2700 MHz
900 MHz Tune [1] Maximum Gain vs. Frequency [2]
44 NORMALIZED ATTENUATION (dB) 40 36 GAIN (dB) 32 28 24 20 0.7
Normalized Attenuation
(Only Major States are Shown)
0 -4 -8 -12 -16 -20 -24 -28 -32 0.7 0.8 0.9 1 1.1 1.2 FREQUENCY (GHz) 1.3 1.4 1.5
0 dB 0.5 dB 1 dB 2 dB 4 dB 8 dB 16 dB 31.5 dB
+25 C +85 C -40 C
0.8
0.9
1 1.1 1.2 FREQUENCY (GHz)
1.3
1.4
1.5
12
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
12 - 2
Input Return Loss
(Only Major States are Shown)
0 -5 RETURN LOSS (dB) -10 -15 -20 -25 -30 0.7
0 dB 0.5 dB 1 dB 2 dB 4 dB 8 dB 16 dB 31.5 dB
Output Return Loss
(Only Major States are Shown)
0 -5 RETURN LOSS (dB) -10 -15 -20 -25 -30 0.7
0 dB 0.5 dB 1 dB 2 dB 4 dB 8 dB 16 dB 31.5 dB
0 dB
0.8
0.9
1
1.1
1.2
1.3
1.4
1.5
0.8
0.9
1
1.1
1.2
1.3
1.4
1.5
FREQUENCY (GHz)
FREQUENCY (GHz)
Bit Error vs. Frequency
(Only Major States are Shown)
2 1.5 1 BIT ERROR (dB) 0.5 0 -0.5 -1 -1.5 -2 0.7 0.8 0.9 1
0 dB 0.5 dB 1 dB 2 dB 4 dB 8 dB 16 dB 31.5 dB 16 dB 8 dB 31.5 dB
Bit Error vs. Attenuation State
1.5 1.25 1 BIT ERROR (dB) 0.75 0.5
0.7 GHz 0.8 GHz 0.7 GHz 0.8 GHz 0.9 GHz 1.0 GHz 1.1 GHz 1.2 GHz 0.9 GHz, 1 GHz 1.1 GHz, 1.2 GHz
0.25 0
-0.25 1.4 1.5 -0.5 0 4 8 12
1.1
1.2
1.3
16
20
24
28
32
FREQUENCY (GHz)
ATTENUATION STATE (dB)
[1] See Evaluation PCB and Application Circuit for 900 MHz Tune. [2] Maximum gain state with digital attenuation set to minimum attenuation.
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or apps@hittite.com
HMC926LP5E
v00.0810
0.5 dB LSB 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 700 - 2700 MHz
900 MHz Tune [1] Relative Phase vs. Frequency
(Only Major States are Shown)
24 16 8 0 -8 -16
16 dB 31.5 dB
Step Error vs. Frequency
(Only Major States are Shown)
1 0.8
4 dB, 8 dB 0 dB 0.5 dB 1 dB 2 dB 8 dB 4 dB 8 dB 16 dB 31.5 dB
RELATIVE PHASE (deg)
STEP ERROR (dB)
0 dB 0.5 dB 1 dB 2 dB
4 dB 8 dB 16 dB 31.5 dB
0.6 0.4 0.2 0 -0.2 -0.4 -0.6 -0.8
16 dB
12
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
-24 0.7
0.8
0.9
1 1.1 1.2 FREQUENCY (GHz)
1.3
1.4
1.5
-1 0.7
0.8
0.9
1 1.1 1.2 FREQUENCY (GHz)
1.3
1.4
1.5
Noise Figure vs. Temperature [2]
12 10 NOISE FIGURE (dB) 8 6 4 2 0 0.7
+25 C +85 C -40 C
Noise Figure vs. Attenuation State
12 10 NOISE FIGURE (dB) 8 6 4 2 0 0.7
0 dB 8 dB 16 dB
0.8
0.9
1 1.1 1.2 1.3 FREQUENCY (GHz)
1.4
1.5
0.8
0.9
1 1.1 1.2 1.3 FREQUENCY (GHz)
1.4
1.5
Output P1dB vs. Frequency [2]
30
Output P1dB vs. Attenuation State @ 900 MHz
30 25
25 P1dB (dBm) P1dB (dBm) 20 15 10 5 0
20
15
+25 C +85 C -40 C
+25 C +85 C -40 C
10 0.7
0.8
0.9
1 1.1 1.2 FREQUENCY (GHz)
1.3
1.4
1.5
0
4
8
12
16
20
24
28
32
ATTENUATION STATE (dB)
[1] See Evaluation PCB and Application Circuit for 900 MHz Tune. [2] Maximum gain state with digital attenuation set to minimum attenuation.
12 - 3
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or apps@hittite.com
HMC926LP5E
v00.0810
0.5 dB LSB 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 700 - 2700 MHz
900 MHz Tune [1] Output IP3 vs. Temperature [2][3]
50 45 40 IP3 (dBm) 35 30 25 20 0.7 IP3 (dBm)
+25 C +85 C -40 C
Output IP3 vs. Tone Power [2]
50 45 40 35 30 25 20 0.7
Pout = 0 dBm Pout = +5 dBm Pout = +10 dBm
0.8
0.9
1 1.1 1.2 FREQUENCY (GHz)
1.3
1.4
1.5
0.8
0.9
1 1.1 1.2 FREQUENCY (GHz)
1.3
1.4
1.5
12
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
12 - 4
Output IP3 vs. Attenuation State @ 900 MHz
50 45 40 IP3 (dBm) 35 30 25 20 15
Pout = 0 dBm Pout = -5 dBm
0
4
8
12 16 20 24 ATTENUATION STATE (dB)
28
32
[1] See Evaluation PCB and Application Circuit for 900 MHz Tune. [2] Maximum gain state with digital attenuation set to minimum attenuation. [3] Two-tone output power @ 0 dBm
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or apps@hittite.com
HMC926LP5E
v00.0810
0.5 dB LSB 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 700 - 2700 MHz
1900 MHz Tune [1] Maximum Gain vs. Frequency [2]
44 NORMALIZED ATTENUATION (dB) 40 36 GAIN (dB) 32 28 24
Normalized Attenuation
(Only Major States are Shown)
0 -4 -8 -12 -16 -20 -24 -28 -32 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4 2.5
0 dB 0.5 dB 1 dB 2 dB 4 dB 8 dB 16 dB 31.5 dB
+25 C +85 C -40 C
12
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
20 1.7
1.8
1.9
2
2.1
2.2
2.3
2.4
2.5
FREQUENCY (GHz)
FREQUENCY (GHz)
Input Return Loss
(Only Major States are Shown)
0 -5 RETURN LOSS (dB) -10 -15 -20 -25 -30 1.7
0 dB 0.5 dB 1 dB 2 dB 4 dB 8 dB 16 dB 31.5 dB 0 dB
Output Return Loss
(Only Major States are Shown)
0 -5 RETURN LOSS (dB) -10 -15 -20 -25 -30 1.7
0 dB 0.5 dB 1 dB 2 dB
4 dB 8 dB 16 dB 31.5 dB
1.8
1.9
2
2.1
2.2
2.3
2.4
2.5
1.8
1.9
2
2.1
2.2
2.3
2.4
2.5
FREQUENCY (GHz)
FREQUENCY (GHz)
Bit Error vs. Frequency
(Only Major States are Shown)
2 1.5 1 BIT ERROR (dB) 0.5 0 -0.5 -1 -1.5 -2 1.7 1.8 1.9 2
0 dB 0.5 dB 1 dB 2 dB 4 dB 8 dB 16 dB 31.5 dB 8 dB,16 dB 4 dB 31.5 dB
Bit Error vs. Attenuation State
1.5 1.25 1 BIT ERROR (dB) 0.75 0.5
2.3 GHz 2.4 GHz 1.8 GHz 1.9 GHz 2.0 GHz 2.1 GHz 2.2 GHz 2.3 GHz 2.4 GHz 1.8 GHz - 2.2 GHz
0.25 0
-0.25 2.4 2.5 -0.5 0 4 8 12
2.1
2.2
2.3
16
20
24
28
32
FREQUENCY (GHz)
ATTENUATION STATE (dB)
[1] See Evaluation PCB and Application Circuit for 1900 MHz Tune. [2] Maximum gain state with digital attenuation set to minimum attenuation.
12 - 5
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or apps@hittite.com
HMC926LP5E
v00.0810
0.5 dB LSB 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 700 - 2700 MHz
1900 MHz Tune [1] Relative Phase vs. Frequency
(Only Major States are Shown)
24 16 8 0 -8 -16 -24 1.7
31.5 dB
Step Error vs. Frequency
(Only Major States are Shown)
1 0.8 0.6 STEP ERROR (dB)
8 dB
RELATIVE PHASE (deg)
16 dB
0.4 0.2 0 -0.2 -0.4 -0.6 -0.8
0 dB 0.5 dB 1 dB 2 dB
2 dB, 4 dB
16 dB 4 dB 8 dB 16 dB 31.5 dB
0 dB 0.5 dB 1 dB 2 dB
4 dB 8 dB 16 dB 31.5 dB
1.8
1.9
2 2.1 2.2 FREQUENCY (GHz)
2.3
2.4
2.5
-1 1.7
1.8
1.9
2 2.1 2.2 FREQUENCY (GHz)
2.3
2.4
2.5
12
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
12 - 6
Noise Figure vs. Temperature [2]
12 10 NOISE FIGURE (dB) 8 6 4 2 0 1.7
+25 C +85 C -40 C
Noise Figure vs. Attenuation State
12 10 NOISE FIGURE (dB) 8 6 4 2 0 1.7
0 dB 8 dB 16 dB
1.8
1.9
2 2.1 2.2 2.3 FREQUENCY (GHz)
2.4
2.5
1.8
1.9
2 2.1 2.2 2.3 FREQUENCY (GHz)
2.4
2.5
Output P1dB vs. Frequency [2]
30
Output P1dB vs. Attenuation State @ 1900 MHz
30 25
25 P1dB (dBm) P1dB (dBm) 20 15 10 5 0
20
15
+25 C +85 C -40 C
+25 C +85 C -40 C
10 1.7
1.8
1.9
2
2.1
2.2
2.3
2.4
2.5
0
4
8
FREQUENCY (GHz)
12 16 20 24 ATTENUATION STATE (dB)
28
32
[1] See Evaluation PCB and Application Circuit for 1900 MHz Tune. [2] Maximum gain state with digital attenuation set to minimum attenuation.
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or apps@hittite.com
HMC926LP5E
v00.0810
0.5 dB LSB 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 700 - 2700 MHz
1900 MHz Tune [1] Output IP3 vs. Temperature [2][3]
50 45 40 IP3 (dBm) 35 30 25
+25 C +85 C -40 C
Output IP3 vs. Tone Power [2]
50 45 40 IP3 (dBm) 35 30 25 20 1.7
Pout = 0 dBm Pout = +5 dBm Pout = +10 dBm
12
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
20 1.7
1.8
1.9
2
2.1
2.2
2.3
2.4
2.5
1.8
1.9
2
2.1
2.2
2.3
2.4
2.5
FREQUENCY (GHz)
FREQUENCY (GHz)
Output IP3 vs. Attenuation State @ 1900 MHz
45 40 35 IP3 (dBm) 30 25 20 15 10 5 0 4 8 12 16 20 24 28 32
Pout = 0 dBm Pout = -5 dBm
ATTENUATION STATE (dB)
[1] See Evaluation PCB and Application Circuit for 1900 MHz Tune. [2] Maximum gain state with digital attenuation set to minimum attenuation. [3] Two-tone output power @ 0 dBm
12 - 7
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or apps@hittite.com
HMC926LP5E
v00.0810
0.5 dB LSB 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 700 - 2700 MHz
2600 MHz Tune [1] Maximum Gain vs. Frequency [2]
44 NORMALIZED ATTENUATION (dB) 40 36 GAIN (dB) 32 28 24 20 2.1
Normalized Attenuation
(Only Major States are Shown)
0 -4 -8 -12 -16 -20 -24 -28 -32 2.1 2.2 2.3 2.4 2.5 2.6 FREQUENCY (GHz) 2.7 2.8
0 dB 0.5 dB 1 dB 2 dB 4 dB 8 dB 16 dB 31.5 dB
+25 C +85 C -40 C
2.2
2.3
2.4 2.5 2.6 FREQUENCY (GHz)
2.7
2.8
12
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
12 - 8
Input Return Loss
(Only Major States are Shown)
0 -5 RETURN LOSS (dB) -10
8 dB - 31.5 dB 0 dB 0.5 dB 1 dB 2 dB 4 dB 8 dB 16 dB 31.5 dB
Output Return Loss
(Only Major States are Shown)
0 -5 RETURN LOSS (dB)
0 dB 0 dB 0.5 dB 1 dB 2 dB 4 dB 8 dB 16 dB 31.5 dB
-10 -15 -20 -25 -30 2.1
-15 -20 -25 -30 2.1
2.2
2.3
2.4 2.5 2.6 FREQUENCY (GHz)
2.7
2.8
2.2
2.3
2.4 2.5 2.6 FREQUENCY (GHz)
2.7
2.8
Bit Error vs. Frequency
(Only Major States are Shown)
2 1.5 1 BIT ERROR (dB) 0.5 0 -0.5 -1 -1.5 -2 2.1 2.2 2.3
0 dB 0.5 dB 1 dB 2 dB 4 dB 8 dB 16 dB 31.5 dB 8 dB,16 dB 4 dB 31.5 dB
Bit Error vs. Attenuation State
1.5 1.25 1 BIT ERROR (dB) 0.75 0.5
2.7 GHz 2.3 GHz - 2.6 GHz
0.25 0
2.3 GHz 2.4 GHz 2.5 GHz 2.6 GHz 2.7 GHz
-0.25 2.7 2.8 -0.5 0 4 8
2.4 2.5 2.6 FREQUENCY (GHz)
12 16 20 24 ATTENUATION STATE (dB)
28
32
[1] See Evaluation PCB and Application Circuit for 2600 MHz Tune. [2] Maximum gain state with digital attenuation set to minimum attenuation.
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or apps@hittite.com
HMC926LP5E
v00.0810
0.5 dB LSB 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 700 - 2700 MHz
2600 MHz Tune [1] Relative Phase vs. Frequency
(Only Major States are Shown)
24 16 8 0 -8 -16
31.5 dB
Step Error vs. Frequency
(Only Major States are Shown)
1 0.8 0.6 STEP ERROR (dB)
8 dB
RELATIVE PHASE (deg)
16 dB
0.4 0.2 0 -0.2 -0.4 -0.6 -0.8
4 dB
2 dB
0 dB 0.5 dB 1 dB 2 dB
4 dB 8 dB 16 dB 31.5 dB
0 dB 0.5 dB 1 dB 2 dB
4 dB 8 dB 16 dB 31.5 dB
16 dB
12
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
-24 2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
-1 2.1
2.2
2.3
FREQUENCY (GHz)
2.4 2.5 2.6 FREQUENCY (GHz)
2.7
2.8
Noise Figure vs. Temperature [2]
12 10 NOISE FIGURE (dB) 8 6 4 2 0 2.1
+25 C +85 C -40 C
Noise Figure vs. Attenuation State
12 10 NOISE FIGURE (dB) 8 6 4 2 0 2.1
0 dB 8 dB 16 dB
2.2
2.3
2.4 2.5 2.6 FREQUENCY (GHz)
2.7
2.8
2.2
2.3
2.4 2.5 2.6 FREQUENCY (GHz)
2.7
2.8
Output P1dB vs. Frequency [2]
30
Output P1dB vs. Attenuation State @ 2600 MHz
30 25
25 P1dB (dBm) P1dB (dBm)
+25 C +85 C -40 C
20 15 10 5 0 -5
+25 C +85 C -40 C
20
15
10 2.1
2.2
2.3
2.4 2.5 2.6 FREQUENCY (GHz)
2.7
2.8
0
4
8
12 16 20 24 ATTENUATION STATE (dB)
28
32
[1] See Evaluation PCB and Application Circuit for 2600 MHz Tune. [2] Maximum gain state with digital attenuation set to minimum attenuation.
12 - 9
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or apps@hittite.com
HMC926LP5E
v00.0810
0.5 dB LSB 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 700 - 2700 MHz
2600 MHz Tune [1] Output IP3 vs. Temperature [2][3]
50 45 40 IP3 (dBm) 35 30 25 20 2.1 IP3 (dBm)
+25 C +85 C -40 C
Output IP3 vs. Tone Power [2]
50 45 40 35 30 25 20 2.1
Pout = 0 dBm Pout = +5 dBm Pout = +10 dBm
2.2
2.3
2.4 2.5 2.6 FREQUENCY (GHz)
2.7
2.8
2.2
2.3
2.4 2.5 2.6 FREQUENCY (GHz)
2.7
2.8
12
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
12 - 10
Output IP3 vs. Attenuation State @ 2600 MHz
50 45 40 35 IP3 (dBm) 30 25 20 15 10 5 0 4 8 12 16 20 24 ATTENUATION STATE (dB) 28 32
Pout = 0 dBm Pout = -5 dBm
[1] See Evaluation PCB and Application Circuit for 2600 MHz Tune. [2] Maximum gain state with digital attenuation set to minimum attenuation. [3] Two-tone output power @ 0 dBm
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or apps@hittite.com
HMC926LP5E
v00.0810
0.5 dB LSB 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 700 - 2700 MHz
Serial Control Interface
The HMC926LP5E contains a 3-wire SPI compatible digital interface (SERIN, CLK, LE). It is activated when P/S is kept high. The 6-bit serial word must be loaded MSB first. The positive-edge sensitive CLK and LE requires clean transitions. Standard logic families work well. If mechanical switches were used, sufficient debouncing should be provided. When LE is high, 6-bit data in the serial input register is transferred to the attenuator. When LE is high CLK is masked to prevent data transition during output loading.
12
VARIABLE GAIN AMPLIFIERS - DIGITAL - SMT
Parameter Min. serial period, tSCK Control set-up time, tCS Control hold-time, tCH LE setup-time, tLN Min. LE pulse width, tLEW Min LE pulse spacing, tLES Serial clock hold-time from LE, tCKN
Typ. 100 ns 20 ns 20 ns 10 ns 10 ns 630 ns 10 ns
12 - 11
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com Application Support: Phone: 978-250-3343 or apps@hittite.com
HMC926LP5E
v00.0810
0.5 dB LSB 6-BIT DIGITAL VARIABLE GAIN AMPLIFIER, 700 - 2700 MHz
Power-Up States
If LE is set to logic LOW at power-up, the logic state of PUP1 and PUP2 determines the power-up state of the part per PUP truth table. The DVGA latches in the desired power-up state approximately 200 ms after power-up.
PUP Truth Table
LE 0 0 0 0 PUP1 0 1 0 1 PUP2 0 0 1 1 Gain Relative to Maximum Gain -31.5 dB -24 dB -16 dB Insertion Loss
Power-On Sequence
The ideal power-up sequence is: GND, Vs, digital inputs, RF inputs. The relative order of the digital inputs are not important as long as they are powered after Vs / GND
Control Voltage Table
State Low High Vdd = +5V 0 to 0.8V @