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MAX2244, MAX2245, MAX2246
2.5GHz, 22dBm/20dBm Power Amplifiers with Analog Closed-Loop Power Control
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Status
All versions are No Longer Available. See Ordering Information for recommended replacements.
Description
The MAX2244/MAX2245/MAX2246 single-supply, low-voltage power amplifiers (PAs) are designed for 20dBm Bluetooth® Class 1 applications in the 2.4GHz to 2.5GHz band. The MAX2244/MAX2245 deliver a peak output power of 22dBm with greater than 20dB output-power control range. The 22dBm output power compensates for the filter loss between the PA and the antenna, allowing 20dBm to be delivered to the antenna. The MAX2246 provides a peak output power of 20dBm for a 30% reduction in supply current.
The PAs integrate a power detector and closed-loop power-control circuitry to provide nearly constant output power over the full range of supply voltage, temperature, and input power level. The voltage at the analog control input precisely controls the output power level.
The MAX2244/MAX2245/MAX2246 feature a low-current shutdown mode through a simple logic input. Internal circuitry automatically controls the ramp-up/down of the output power level during turn-on and turn-off to meet Bluetooth spurious emissions requirements.
The devices operate from a 3V to 3.6V single supply. The MAX2244/MAX2246 have a power-control voltage range of 0.5V to 2V, and the MAX2245 has a control voltage range of 0.9V to 2.2V. The devices are packaged in a miniature ultra chip-scale package (UCSP™), significantly reducing the required board area.
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Data Sheet
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Key Features
- 2.4GHz to 2.5GHz Operation
- Accurate Closed-Loop Output Power Control
Over Full Temperature, Supply, and Input Power Range
- Convenient Analog Power-Control Interface
- 22dBm Peak Output Power (MAX2244/MAX2245)
- 20dBm Peak Output with 30% Reduced Supply Current (MAX2246)
- Internal Bandwidth-Limited Power Ramping
- 50Ω Integrated Input Match
- 0.5µA Shutdown Supply Current
- Ultra Chip-Scale Package (1.56mm x 1.56mm)
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Applications/Uses
- 2.4GHz Cordless Phones
- 802.11 FHSS/HomeRF Radios
- Bluetooth® Class 1 Radios
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Diagram
Typical Application Circuit
Product Guides
Reliability Reports
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Software/Models
Ordering Information
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Part Number
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Free
Sample |
Buy |
Status
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Recommended Replacement |
Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
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Temp |
RoHS/Lead-Free?
Materials Analysis
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| MAX2244EBL-T
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N/A |
No Longer Available |
MAX2247EBC+
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UCSP;9 pin;2.5 mm²
Outline Drawing:21-0093 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: B9-1*
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-40°C to +85°C
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RoHS/Lead-Free: No
Materials Analysis |
| MAX2244EBL-T10
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N/A |
No Longer Available |
MAX2247EBC+
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UCSP;
Land Pattern: Not Available
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-40°C to +85°C
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See data sheet
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| MAX2245EBL-T
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N/A |
No Longer Available |
MAX2247EBC+
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UCSP;9 pin;2.5 mm²
Outline Drawing:21-0093 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: B9-1*
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-40°C to +85°C
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RoHS/Lead-Free: No
Materials Analysis |
| MAX2245EBL-T10
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N/A |
No Longer Available |
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UCSP;
Land Pattern: Not Available
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-40°C to +85°C
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See data sheet
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| MAX2246EBL-T
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N/A |
No Longer Available |
MAX2247EBC+
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UCSP;9 pin;2.5 mm²
Outline Drawing:21-0093 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: B9-1*
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-40°C to +85°C
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RoHS/Lead-Free: No
Materials Analysis |
| MAX2246EBL-T10
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N/A |
No Longer Available |
MAX2247EBC+
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UCSP;
Land Pattern: Not Available
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-40°C to +85°C
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See data sheet
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Notes:
- Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
- Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
- Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
- * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
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Products with Similar Part Numbers
More Information
Didn't Find What You Need?
Information Index
Document Ref.: 19-2204
Rev 2;
2003-10-22
This page last modified: 2009-10-15
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