1. general description the BGA3031 is an upstream amplifier meeting the data over cable service interface specifications (docsis 3.0). it is designed fo r cable modem, catv set top box and voip modem applications. the device operates from 5 mhz to 85 mhz. the BGA3031 provides 58 db gain control range in 1 db increments with high incremental accuracy. its maximum gain setting delivers 34 db voltage gain and a superior linear performance. it supports high output levels up to 67 dbmv while mini mizing distortion and output noise levels. the BGA3031 operates at 5 v supply. the gain is controlled via a 3-wire serial interface. the current consumption can be reduced in 4 steps via the serial interface. this enables the user to optimize between dc power efficiency and linearity. in addition the current is automatically reduced at lower ga in settings while preserving the linearity performance. in disable mode the device draws typical 6 ma wh ile it still can be prog rammed to new gain and current settings. the BGA3031 is housed in 20 pins 5 mm ? 5 mm leadless hvqfn package. 2. features and benefits ? 58 db gain control range in 1 db steps using a 3-wire serial interface ? 5 mhz to 85 mhz frequency operating range ? ? 0.2 db incremental gain step accuracy ? maximum voltage gain 34 db ? excellent imd3 of ? 70 dbc at 64 dbmv output power ? excellent second harmonic level of ? 80 dbc at 64 dbmv output power ? excellent third harmonic level of ? 67 dbc at 64 dbmv output power ? excellent noise figure of 3.5 db at maximum gain ? 5 v single supply operation ? excellent esd protection at all pins ? unconditionally stable ? compliant to directive 2002/ 95/ec, regarding restriction of hazardous substances (rohs) 3. applications ? docsis 3.0 cable modems ? voip modems ? set-top boxes BGA3031 docsis 3.0 upstream amplifier rev. 1 ? 15 august 2013 product data sheet + 9 4 ) 1
BGA3031 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 15 august 2013 2 of 19 nxp semiconductors BGA3031 docsis 3.0 upstream amplifier 4. quick reference data [1] voltage gain does not include loss due to input and output transformers. [2] p i = 30 dbmv. 5. ordering information table 1. quick reference data typical values at v cc = 5 v; current setting = 3; t case = 25 ? c; z i = 200 ? : z o = 75 ? , unless otherwise specified. symbol parameter conditions min typ max unit i cc supply current transmit-enable mode; tx_en = high - 325 - ma transmit-disable mode; tx_en = low - 6.0 - ma g v voltage gain gain code = 111111 [1] [2] -34- db nf noise figure transmit-enable mode; gain code = 111111 - 3.5 - db ? 2h second harmonic level p i = 30 dbmv; p l = 64 dbmv into 75 ? differential impedance - ? 80 - dbc ? 3h third harmonic level p i = 30 dbmv; p l = 64 dbmv into 75 ? differential impedance - ? 67 - dbc imd3 third-order intermodulation distortion p i = 27 dbmv per tone; p l = 61 dbmv per tone into 75 ? differential impedance - ? 70 - dbc p l(1db) output power at 1 db gain compression signal - 74 - dbmv table 2. ordering information type number package name description version BGA3031 hvqfn20 plastic thermal enhanced very thin quad flat package; no leads; 20 terminals; body 5 ? 5 ? 0.85 mm sot662-1
BGA3031 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 15 august 2013 3 of 19 nxp semiconductors BGA3031 docsis 3.0 upstream amplifier 6. functional diagram 7. pinning information 7.1 pinning fig 1. functional diagram d d d & |