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SA620
Datasheet
(Product Specification)
14-Dec-04, 15 pages, 218 kB
General description
The SA620 is a combined RF amplifier, VCO with tracking bandpass filter and mixer designed for high-performance low-power communication systems from 800-1200MHz. The low-noise preamplifier has a 1.6dB noise figure at 900MHz with 11.5dB gain and an IP3 intercept of -3dBm at the input. The gain is stabilized by on-chip compensation to vary less than +-0.2dB over -40 to +85Cel temperature range. The wide-dynamic-range mixer has an 9dB noise figure and IP3 of -6dBm at the input at 900MHz. An external LO can be used in place of the internal VCO for improved mixer input IP3 and a 3mA reduction in current. The chip incorporates a through-mode option so the RF amplifier can be disabled and replaced by an attenuator (S21= -7.5dB). This is useful for improving the overall dynamic range of the receiver when in an overload situation. The nominal current drawn from a single 3V supply is 10.4mA and 7.2mA in the thru-mode. Additionally, the VCO and Mixer can be powered down to further reduce the supply current to 1.2mA.
Features
- Low current consumption: 10.4mA nominal, 7.2mA with thru-mode activated
- Outstanding noise figure: 1.6dB for the amplifier and 9dB for the mixer at 900MHz
- Excellent gain stability versus temperature and supply voltage
- Switchable overload capability
- Independent LNA, mixer and VCO power down capability
- Internal VCO automatic leveling loop
- Monotonic VCO frequency vs control voltage
Products/packages
| Type number | Orderable part number | Ordering code (12NC) | Product status | Package | Packing | Marking | ECCN |
|---|---|---|---|---|---|---|---|
| SA620DK | SA620DK,112 | 9351 437 30112 | Volume production | SOT266-1
(SSOP20) | Tube | Standard Marking | |
| SA620DK | SA620DK,118 | 9351 437 30118 | Volume production | SOT266-1
(SSOP20) | Reel Pack, SMD, 13" | Standard Marking |
Quality/reliability/chemical content
| Type number | Orderable part number | Chemical content | RoHS | Leadfree Conversion date | RHF | IRF (FIT) | MTBF (hours) | MSL |
|---|---|---|---|---|---|---|---|---|
| SA620DK | SA620DK,112 | SA620DK |
| week 12, 2005 | ||||
| SA620DK | SA620DK,118 | SA620DK |
| week 12, 2005 |
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Orderable part number | Indicative price/unit($) | Region | Distributor | In stock | Order quantity | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|---|---|
| SA620DK | 9351 437 30112 | SA620DK,112 | 2.2200 | not available | ||||||
| SA620DK | 9351 437 30118 | SA620DK,118 | 2.2200 | NA | DIGI-KEY CORPORATION | 2,031 | 11/20/2009 | Buy online | Order samples |
Applications
- 900MHz cellular front-end
- 900MHz cordless front-end
- Spread spectrum receivers
- RF data links
- UHF frequency conversion
- Portable radio
Design support
Application Notes
AN1777;
Low voltage front-end circuits: SA601, SA620 (1997-08-20)
Support Documents
nxp_rf_manual_12th_edition;
RF Manual 12th Edition (2009-06-01)Parametrics/similar products
| Type number | Package | Application | FUNCTION | Operating temp.(Cel) | Voltage | No. of Pins | Current | Power |
|---|---|---|---|---|---|---|---|---|
| SA620DK | SOT266-1
(SSOP20) | Wireless | Amplifiers | -40~85 | Low | 20 | Low | Low |
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SA620
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