CXA1122AP-1

CXA1122AP SONY | Alldatasheet

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SONY: CXA1122AP VTR RF Modulator Sa Description Package Outline Unit: mm CXA1122AP is a VTR RF modulator for the . VHF band, and is used to convert frequencies of 16 pin DIP (Plastic) audio signals and video signals. \\ This modulator consists of circuits such as aN video clamp, white clipping, a carrier oscillator, ‘ 4 video modulator, audio FM modulator, frequen- DS eno A = 4 cy/channel switch, and antenna switch driver. bo Pe 0° to 152 Features , thse * Operates with low voltage and low con- He sumption power. (Vcc=5 V, Icc=17.5 mA, 2 Icont = 20 to 25 mA) fi * Low radiation and harmonic products. 1 * Provided with few external devices. i x F; * Permits two channels in the VHF band. val fhe a EI © Provided with a built-in regulator and is —_— ” resistant to power source changes. OIP-16P-121 * Allows video input of 0.5 Vp-p and various uses. Absolute Maximum Ratings (Ta = 25°C) ® Supports a one-mixer system to simplify * Supply voltage Vcc 12 Vv the RF unit design. — - © Operating Topr —20to +75 °C © Permits the signal ratio of video to audio to temperature be adjusted with an external capacitor. * Storage Tstg —55to +150 °C * Provided with a carrier-off SW function for temperature boss audio. . * Allowable power Po 550 = mW * Has a built-in antenna switch driver. dissipation ° es fa wige oscillation fe) tose for 8 SAW Recommended Operating Condition jurface Acoustic Wave) resonator. * Supply voltage Vcc 4.4 to 9.3 v Structure Bipolar silicon monolithic IC Block Diagram oo sw saw wee ant ow ADJ GND2 SAWIN OUTZ OUT! CH SW iN CONT OUT aT Sw Lanes aT tawe | [eae CEs} <h | i are (Lee To OO) ——O-) 9) —® ‘RF OUT Vee. P/SADS REG 4.5MH2 CARRIER AUDIO. GND OuT TANK (OFF SW IN, -1- SONY reserves the right to change products and specifications without notice F89127-TO This information does not convey any license under pstent rights of SONY corporation or others.

SONY. CXA1122AP Pin Description and Equivalent Circuits Voltage typical Description value (V) RE OUT RF output pin (modulates video and audio FM sig- ° nals into AM signals and outputs them.) Sr P/S adjustment pin (The signal ratio of video to au: © dio gets larger 8s capacitance is added between * pin 3 and GND.) o REG OUT a Regulator output pin. + _ BE — — Corrier off switch (OPEN~ carrier OFF, Vec—carrier ON) CARRIER OFF SW oT The RF output can be switched to ON or OFF with * the high-impedance input switch. © , AUDIO IN ™ Audio input pin Links up with pin 6 switch to [| on | ANT SW DRIVER, i © supply the DC voltage output to the antenna switeh circuit. | oFF | VIDEO IN Le Video input pin * Channel switch OPEN -~GND eu om LOW 0 to 0.7V High 2.3 to Vec | 2 | SAW OUT1 4.4, 3,7 eo Output 1 SAW resonator || SAW OUT2 3.7, 4.4 Output 2 SAW resonator ewe Some | MOD ADJ ek | Pin for slightly adjusting the modulation depth. -2-

SONY. CXA1122aP eA 22AP Electrical Characteristics 1 (See the Etectrical Characteristics Test Circuit} Ta=25°C, Vec=5V ar [ae Eo Ee Volts) V1=No input Video output tev [s=2_| 00 a Vottp2) Vox output level *1 [ si=2 | Volfpt) (Ta= — 10 to +70°C)— Video output Voltpt) (Tax 25°C)— level temperature 22 | stability aVottp2) | Votip2) (Tax — 10,t9 + 70°C )— fotip1) (T= 26°C) septh Vo modulation depth [sit | mpt (Ta=—10 to +70°C)— Video modulation mpt (Ta= 25°C} depth temperature 225 stability mp2 (Ta= 10 to + 70°C)— mp2 (Ta= 25°C) Video modulation dopth difference amp +2 | % between channels Maximum video Vi=1.0Vp-p, WHITE Ampa=mp2—mpz se lee, | Yo mesulation depth *2 {max} trax) Ls | ise | es | * V1 =0.5Vp-p, WHITE Syne-crush level Syne Vo output 100 % TLV Syne/v Writer x 190 ) [oc | vim 0.8Vpp, STAIR STEP [ si=2 | Difterantia! gein % [DP! | vim 0.5Vp-—p, STAIR STEP | si=2_ | Differential phase deg Video higher-harmonic WH V1m0.5Vp:p, 1 MHz CW *5 8 wave ratio RF carrier ratio of video to Vps Vi eno Video Signal, C1 = 3pF [s=? | 3B audio Sit ‘Audio FM S1= 1, Fs=Vo2 frequency Central frequency fe(Te=0 to 60°C)—ts{Ta= 25°C} t10 | kHz tomperoture stability "6 ‘Audio FM S1=1, C2=39pF kHz modulation V2=pin 7 DC voltage #0.2 V mv Sensitivity * fs frequency change/0.4 V *7 ‘Audio total harmonic m4 ke * ‘Audio S/N [ASN —_| The eudio S/N is O dB at 60% moduletion [ ss [ 5 | — | a Moximum audio $1=1, V2=pin 7 DC voltage = 1.0V % FM modulation depth FS trequency change/50 kHz x 100 —3-

SONY. CXA11220P ae FeeSeSeFeeeeSSeSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSFSFFF EE * Classifications [__Merking [ Aucio FM modulation sensitivity kHzimV) ] [Tariaar1 | asisweosis ‘| [anasara [ots wanes —_—| Electrical Characteristics 2 (Design security items: This parameter is not 100% tested.) Note) *1. Measure the Vo output level using the spectrum analyzer with a 50Q input impedance and convert measured value Vo into decibels (dBm) using the following expression: Output (dBp} =Vo (dBm) + 113 *2. The difference in image modulation depth between the maximum modulation depth at an input of 0.5 Vp-p and at an input of 1.0 Vp-p. *3. Directly-read value (dB) of the component ratio of the 920 kHz beat to the video carrier level measured with a spectrum analyzer *4, Measured with the standard-type demodulator after demodulation. *5, fe+2 MHz or fc+3 MHz level to the Vo carrier (fc) level *6. Adjust fs to 4.500 MHz with Ta=25°C. *7,. A15kQ resistor is added in series for pre-emphasis so that a better match can be obtained between audio modulation sensitivity classifications. *8, Adjust the V2 level so that the FM deviation is + 15 kHz and measure the total harmonic distortion after demodulating Vo with the standard-type demodulator. Input Waveforms WHITE signal STAIR STEP signal APL 50% subcarrier 20 IRE ge w| 38 : | |3e2 8 2 bell je ak ns i | —4—

SONY. ©XA1122AP eee RAT ZAP Electrical Characteristics Test Circuit cu sw 1 7 2 SAW ee Fenonator i) poe oe video ai li fis i" Ea H use ES O10 1) —)- 1) —O—~ p Es © [soca 7? i ! i H ! Pp 4--9--==-= S oneaeinieanatl H H HP ~<<p | wo Ty « ve 1009 2003P cl. 15K ono” 2.2, *T ne sez ¥2 , Autio Toi Oe IN ”, ol |e ; ifs 1m : T T ied + L1 SSVNR-3O39FE (Toko) mind «+f | ° * SAW resonator KAR-91CS (Kyo-sela) ot eur * SAW resonator TOS-101A-8R (TOYO-COM) Vee Application Circuit cH Se SAW 3 on resonstor a viceo aa) [, 4)—3-) 19 “2-0-® u Gr OSC” sw 109R RF OUTO-4| sooo? 24K OUT ves REG & | ORD-DHO-O-—O-E Veo is) =” bd a [zr 10H I tt, ez, pla © Ausio IN Fowl th 30> ‘mr * C} 10-5 pF) is used to adjust the video to audio ratio. + C2 RH 39 pF °° F (improve in Audio SIN) -5~

SONY. CXA1122AP oe RAPA firoutt current vs. Supply voltage Video output level vs. Supply voltage gL. | [tr g-Li tT Tie ‘ » +H g,, PT PT | | fo oe ee Si Spa salpor1. | 7 | bet tT gyi TT bf | 1 I | sq | tT e LI ELti iit r wt i]t tT 40 60 8.0 100 40 60 80 10.0 Vee - Supply voltage {V) Vec - Supply voltage (V} Video modulation depth vs. Supply voltage Video to audio ratio vs. Supply voltage 2 ea (aan gt KTP TT 5 ot | ee 10 : Qre geli ty g{ TTT Ty 40 60 80 700 40 60 ad 70.0 Vee - Supply voltage (V) Vee - Supply voltage (V) Differential phase vs. Supply voltage Differential gain vs. Supply voltage EET TT TT WH | + 5, EE z. Hi 2Li i | € [| ot LES jiseenee git Py ee be] | TT | Ati i tt | 40 60 30 10.0 40 60 80 100 Vec - Supply voltage (V) Vec - Supply voltage (V) —~6—

SONY, CXAI122AP meee XA TRAP n S/N vs. Supply voltage os Skew ratio vs. Supply voltage |] {| vt tow TI 2a eel | oer I vod a cree Ol g rs

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Vee - Supply voltage {V) Vee - Supply voltage (V) ANT SW driver load vs. Voltage characteristic 920 kHz beat vs. Supply voltage A A a A EERE EEE HHH Eas a {tt 5° |input: 3.58 MHz sin 0.5 Vi cE a a Ei Ae sx tt TTP TT i est jp Seti tt TT TT yyy 8 seer rrr rer s .\\--..--=== Pos SG ee PEERS SR Sig a =a 8. 0}, DOPRSES Bob fey PUPPET rer Pg a ARE Cc] Lite; rT rT TTT ry) ) ty Prt 4 5 6 7 8 9 Ww LPT tity CJ Vec - Supply voltage (V) 10 2 3 a 50 60 9 pin load current (mA) Inter-carrier change vs. Supply voltage Supply ripple characteristics | RST enn ROLYZER ‘ POP (Rms measurement eS SS SB F4 Fee 60 are + | | color bar signal fg = | degtieset-o-f TT | -+- 100 Hz, 30 - ‘oop eee 2 T+ fltloigw mVp-p ripple x a eo = input and zo S = 50 pu z 4 a 2° TTT] PTT TTT no color bar et rr trr+rT yy g Ceo 2'OT I rr La ! 2p ee 3 To FETT on soo tte, 30 H ECE OPPO mpstione Sree ca SCOEEL LLL input and «ERE rere] eRe CPi Py Pr rrryr ty | rr a ar ar © 5 6 7 8 8 W Vcc - Supply voltage (V) Vec - Supply voltage {V} -7-—