• Versatile two-chip solution:
-1583Programmable analog gain block
-5263Digital gain controller
• Accommodates full pro audio levels
+27.8 dBu max input with ±17V supplies
• Programmable gain: 0 to 51 dB in 3 dB steps
• Low Noise: -125.5 dBu EIN, 51 dB gain, Rs=150 Ω
• Low THD+N: < 0.003 % @ 24 dB gain
• Integrated zero crossing detector minimizes switching noise
• Daisy Chainable SPI control interface
• Two general purpose outputs (GPOs)
• Small footprint:
4 x 4 mm QFN16 (1583)
5 x 5 mm QFN24 (5263)
Product Datasheets Download 5263 Datasheet(443 kB)
Digital Mic Preamp Controller 1583 Datasheet(190 kB)
Differential Audio Preamplifier
TheTHAT1583andTHAT5263ICs enable digitally controlled microphone preamplifier applications with unprecedented performance. Operating on maximum ±17V supplies, the chipset accepts pro audio input levels (+27.8 dBu max) without an input pad. Gain is adjustable from 0dB to 51dB in 3dB increments. The 5263’s built-in zero-crossing detector and other patent-pending techniques for reducing zipper noise enable very smooth and silent gain changes.
Two general purpose outputs on the 5263 can be connected to a variety of peripheral functions, e.g. input pad, phantom power switches, signal routing switches, LED indicators, etc. Separating the analog mic pre front end (THAT1583) from the digital functions and switched resistor ladder (THAT5263) allows each IC to be optimized for high performance.
Key Specifications(see the5263and1583datasheets for complete specifications)
Parameter
Conditions
1583/5263
Combination
Units
Analog Supply Voltage
Referenced to AGND
±5 to ±17
V
Digital Supply Voltage
Referenced to DGND
3.3
V
Analog Supply Current
No Signal
7.8
mA
Digital Supply Current
No Signal
5.0
uA
Max Differential Input Level
±17 volt supplies, 0 dB gain
27.8
dBu
Max Differential Output Level
±17 volt supplies
29.6
dBu
Equivalent Input Noise, Rs = 150 Ω, BW = 22kHz
0 dB gain
21 dB gain
51 dB gain
-96.0
-115.0
-125.5
dBu
THD + N f = 1kHz, Vout = 24dBu BW = 22kHz
24 dB gain
0.003
%
Bandwidth (small signal) CL = 10pF
0 dB gain
21 dB gain
51 dB gain
4
3.5
580
MHz
MHz
kHz
Slew Rate, Vout = 10Vpp, CL = 10pF G = 21 dB
—
38
V/µs
Dynamic Range Rs = 150Ω, BW = 22kHz
Power supply voltage: ±17V
0 dB gain
21 dB gain
51 dB gain
All 1583 and 5263 parts areRoHS compliant.
Minimum order quantity (MOQ) is one tube or one reel. Parts must be ordered in multiples of the MOQ.
Samples are available to qualified applicants.
Pricing is subject to change.
* Price per channel and when 1583 and 5263 are purchased as a pair. Pricing varies when purchased separately.
**There is a small additional charge for tape and reel packaging.
Design Note 140 Input and Output Circuits for THAT Preamplifier ICs (244k)
